2008年5月29日星期四

2008年6月18日获得第一届SPORTSTOWN男子单打3.5组冠军

1st Sportstown Pacific OpenNTRP Men's 3.5 Singles Results

NTRP Men's 3.5 Singles
F
(6) Jeff Yue Yang d. (2) Paul Greveling
6-1; 6-2
SF
(2) Paul Greveling d. (4) Hung-sia Teh
2-6; 6-2; 6-1
SF
(6) Jeff Yue Yang d. (1) Jonathan Kooy
6-2; 6-4
Q
(2) Paul Greveling d. Tom Faraone
6-4; 6-2
Q
(4) Hung-sia Teh d. Darcy Lawrence
5-7; 6-0; 6-4
Q
(6) Jeff Yue Yang d. (3) Maha Sarsthi
6-2; 6-2
Q
(1) Jonathan Kooy d. Ferentz Schmidt
6-1; 6-4
16
(2) Paul Greveling d. Leroy Brown
7-6(2); 7-6(4)
16
Tom Faraone d. Gil Somerville
3-6; 7-5; 6-2
16
(4) Hung-sia Teh d. Michael Olango
4-6; 6-3; 6-2
16
Darcy Lawrence d. Ken Coady
7-5; 6-3
16
(6) Jeff Yue Yang d. Dennis Swartman
6-0; 6-0
16
(3) Maha Sarsthi d. Murray Johnston
6-3; 6-3
16
Ferentz Schmidt d. Dominique Leou
6-3; 6-1
16
(1) Jonathan Kooy d. Allen Hewitt
6-4; 0-6; 6-2
32
Leroy Brown d. Warren Scott
6-1; 6-0
32
Tom Faraone d. Adam Williamson
6-1; 4-6; 6-4
32
Gil Somerville d. Oliver Lawrence
0-6; 6-3; 6-2
32
Michael Olango d. Manny Salvo
6-1; 6-1
32
Ken Coady d. Blake Schaeferle
6-0; 6-0
32
Darcy Lawrence d. (5) Eyal Rosenfeld
6-1; 6-0
32
(6) Jeff Yue Yang d. Stefan Larose
6-3; 6-2
32
Dennis Swartman d. Norm Allan
1-6; 6-2; 6-1
32
Murray Johnston d. Daniel Lee
6-4; 6-3
32
Ferentz Schmidt d. Luke Favel
7-5; 6-1
32
Dominique Leou d. Brett Anthony
6-1; 6-3
32
Allen Hewitt d. Alvise De Buzzaccarini
6-4; 6-3

LINK: http://tennislink.usta.com/tournaments/TournamentHome/Results.aspx?T=69647&E=3

2008年5月22日星期四

2008年5月10日获得第十五届高贵林公开赛3.0组单打冠军

15th Annual Coquitlam Open 2008 Men's 3.0 Single Winners-- Jeff Yue Yang

15th Annual Coquitlam Open 2008Men's 3.0 Singles Results

Men's 3.0 Singles

F
Jeff Yue Yang d. Romeo Crema
6-2; 6-1
SF
Romeo Crema d. (4) Rudy Avila
2-6; 6-2; 6-2
SF
Jeff Yue Yang d. (5) David Avila
6-1; 6-2
Q
Romeo Crema d. Brian Bate
7-6; 6-1
Q
(4) Rudy Avila d. (6) Reza Heshami
2-6; 6-3; 7-5
Q
(5) David Avila d. (3) John Pagan
6-2; 6-3
Q
Jeff Yue Yang d. (1) Frank Hu
6-2; 6-0
16
Romeo Crema d. (2) Gil Somerville
7-5; 6-3
16
Brian Bate d. Dennis Swartman
6-0; 6-2
16
(4) Rudy Avila d. Dipin Bawa
6-2; 6-3
16
(6) Reza Heshami d. Justin Yan
7-5; 6-3
16
(5) David Avila d. Peter Yun
7-6; 6-1
16
(3) John Pagan d. William O'Malley
6-2; 6-2
16
Jeff Yue Yang d. Pablo Gutierrez
6-1; 6-2
16
(1) Frank Hu d. David Holt
6-2; 6-0
32
Romeo Crema d. Luke Favel
6-1; 6-3
32
Brian Bate d. Mark Seong
6-3; 6-3
32
Dennis Swartman d. Vladan Kosoric
2-6; 6-3; 6-3
32
Dipin Bawa d. Dorian Hare
6-2; 6-1
32
(6) Reza Heshami d. Mike Papa
6-3; 4-6; 6-2
32
Justin Yan d. Richard Matic
Wo (emerg)
32
Peter Yun d. Andrey Fedyushin
6-0; 6-0
32
(5) David Avila d. Amar Shan
6-0; 6-0
32
William O'Malley d. Jorge Neitzke
6-3; 6-3
32
Pablo Gutierrez d. Danny Lee
6-3; 3-6; 6-1
32
Jeff Yue Yang d. Dareck Faichuk
6-1; 6-0
32
David Holt d. Lonathan Ostonal
6-4; 6-1

LINK: http://tennislink.usta.com/Tournaments/TournamentHome/Results.aspx?T=68941&E=1

2008年3月10日星期一

How to Determine Your NTRP Rating

Of all the descriptions of plaver levels -- from "A, B and C" to "beginner, intermediate, advanced" -- the best system was developed by the U.S. Tennis Association in 1979. The USTA defines player levels on a scale from 1.0 to 7.0 in its National Tennis Rating Program (NTRP). A condensed version appears below. For more information about NTRP ratings, visit the USTA site.

1.0
Just starting to play tennis
1.5
Has limited experience and is still working primarily on getting the ball into play.
2.0
Needs on-court experience. Has obvious stroke weaknesses but is familiar with basic positions for singles and doubles play.
2.5
Learning to judge where the ball is going although court coverage is weak. Can sustain a short rally of slow pace with other players of the same ability.
3.0
Fairly consistent when hitting medium-paced shots, but is not comfortable with all strokes and lacks execution when trying for directional control, depth or power. Most common doubles formation is one-up and one-back.
3.5
Has achieved improved stroke dependability with directional control on moderate shots, but still lacks depth and variety. Starting to exhibit more aggressive net play, has improved court coverage and is developing teamwork in doubles.
4.0
Has dependable strokes, including directional control and depth on both forehand and backhand sides on moderate shots, plus the ability to use lobs, overheads, approach shots and volleys with some success. Occasionally forces errors when serving and teamwork in doubles is evident. Rallies may be lost due to impatience.
4.5
Starting to master the use of power and spins and beginning to handle pace, has sound footwork, can control depth of shots and is beginning to vary game plan according to opponents. Can hit first serves with power and accuracy and place the second serve. Tends to overhit on difficult shots. Aggressive net play is common in doubles.
5.0
Has good shot anticipation and frequently has an outstanding shot or exceptional consistency around which a game may be structured. Can regularly hit winners or force errors off of short balls and can put away volleys, can successfully execute lobs, drop shots, half volleys and overhead smashes and has good depth and spin on most second serves.
5.5
Has developed power and/or consistency as a major weapon. Can vary strategies and styles of play in a competitive situation and hit dependable shots in a stress situation.
6.0
Has obtained a sectional and/or national ranking.
6.5
Has extensive satellite tournament experience.
7.0
Makes his living from tournament prize money.

Anatomy of a Tennis Racquet


Racquet Facts

Head Sizes

Hitting Surface area Designation
60-79 square inches (387-515 cm²) Traditional
80-94 square inches (516-612 cm²) Midsize
95-105 square inches (613-683 cm²) Mid Plus
106-115 square inches (684-747 cm²) Oversize
116+ square inches (748+ cm²) Super Oversize

Grip Sizes

U.S. Euro
4 1/8 inches 1
4 1/4 inches 2
4 3/4 inches 3
4 1/2 inches 4
4 5/8 inches 5
4 3/4 inches 6
4 7/8 inches 7
5 inches 8

The Rules of Tennis

The Court

The Court shall be a rectangle 78 feet (23.77 m) long and 27 feet (8.23 m) wide. It shall be divided across the middle by a net suspended from a cord or metal cable of a maximum diameter of one-third of an inch (0.8 cm), the ends of which shall be attached to, or pass over, the tops of two posts, which shall be not more than 6 inches (15 cm) square or 6 inches (15 cm) in diameter. These posts shall not be higher than 1 inch (2.5 cm) above the top of the net cord. The centers of the posts shall be 3 feet (.914 m) outside the Court on each side and the height of the posts shall be such that the top of the cord or metal cable shall be 3 feet 6 inches (1.07 m) above the ground.
When a combined doubles (see Rule 34) and singles Court with a doubles net is used for singles, the net must be supported to a height of 3 feet 6 inches (1.07 m) by means of two posts, called "singles sticks", which shall be not more than 3 inches (7.5 cm) square or 3 inches (7.5 cm) in diameter. The centers of the singles sticks shall be 3 feet (.914 m) outside the singles Court on each side.
(See Rule 34 for a doubles court.)
USTA Comment:
The following is an approved method for obtaining proper net tautness. First, loosen the center strap. Next, tighten the net cord until it is approximately 40 inches above the ground, being careful not to overtighten the net. Finally, tighten the center strap until the center of the net is 36 inches above the ground. These measurements should always be made before the first match of the day.
The lines bounding the ends and sides of the Court shall respectively be called the base-lines and the side-lines. On each side of the net, at a distance of 21 feet (6.40 m) from it and parallel with it, shall be drawn the service-lines. The space on each side of the net between the service-line and the side-lines shall be divided into two equal parts called the service-courts by the center service-line, which must be 2 inches (5 cm) in width, drawn half-way between, and parallel with, the side-line. Each base-line shall be bisected by an imaginary continuation of the center service-line to a line 4 inches (10 cm.) in length and 2 inches (5 cm) in width called the "center mark" drawn inside the Court, at right angles to and in contact with such base-lines. All other lines shall be not less than 1 inch (2.5 cm) nor more than 2 inches (5 cm) in width, except the base-line, which may be not more than 4 inches (10 cm) in width, and all measurements shall be made to the outside of the lines. All lines shall be of uniform color. If advertising or any other material is placed at the back of the Court, it may not contain white or yellow. A light color may only be used if this does not interfere with the vision of the players.
If advertisements are placed on the chairs of the linesmen sitting at the back of the court, they may not contain white or yellow. A light color may only be used if this does not interfere with the vision of the players.
ITF Note 1:
In Davis Cup, Fed Cup and the Official Championships of the International Tennis Federation, specific requirements with regard to the space behind the baseline and at the sides are included in the respective Regulations for these events.
ITF Note 2:
At club or recreational level, the space behind each baseline should be not less than 18 feet (5.5 m) and at the sides not less than 10 feet (3.05 m).
Permanent Fixtures
The permanent fixtures of the Court shall include not only the net, posts, singles sticks, cord or metal cable, strap and band, but also, where there are any such, the back and side stops, the stands, fixed or movable seats and chairs round the Court, and their occupants, all other fixtures around and above the Court, and the Umpire, Net-cord Judge, Footfault Judge, Linesmen and Ball Boys when in their respective places.
ITF Note:
For the purpose of this Rule, the word "Umpire" comprehends the Umpire, the persons entitled to a seat on the Court, and all those persons designated to assist the Umpire in the conduct of a match.
The Ball
Balls that are approved for play under the Rules of Tennis must comply with the following specifications:
a. The ball shall have a uniform outer surface consisting of a fabric cover and shall be white or yellow in color. If there are any seams they shall be stitchless.
b. The ball shall conform to the requirements specified in Appendix I (Regulations for making tests specified in Rule 3.), Section iv (in 2001 Friend at Court) for size and be more than 1.975 ounces (56.0 grams) and less than 2.095 ounces (59.4 grams) in weight.
c. The ball shall have a bound of more than 53 inches (134.62 cm) and less than 58 inches (147.32 cm) when dropped 100 inches (254.00 cm) upon a flat, rigid surface, e.g., concrete. The ball shall have a forward deformation of more than 0.220 of an inch (0.559 cm) and less than 0.290 of an inch (0.737 cm) and a return deformation of more than 0.315 of an inch (0.800 cm) and less than 0.425 of an inch (1.080 cm) at 18 lb. (8.165 kg) load. The two deformation figures shall be the averages of three individual readings along three axes of the ball and no two individual readings shall differ by more than 0.030 of an inch (0.076 cm) in each case.
d. For play above 4,000 feet (1219 m) in altitude above sea level, two additional types of ball may be used. The first type is identical to those described above except that the bound shall be more than 48 inches (121.92 cm) and less than 53 inches (134.62 cm) and the ball shall have an internal pressure that is greater than the external pressure. This type of tennis ball is commonly known as a pressurized ball. The second type is identical to those described above except that they shall have a bound of more than 53 inches (134.62 cm) and less than 58 inches (147.32 cm) and shall have an internal pressure that is approximately equal to the external pressure and have been acclimatized for 60 days or more at the altitude of the specific tournament. This type of tennis ball is commonly known as a zero-pressure or non-pressurized ball.
e. All tests for bound, size and deformation shall be made in accordance with the regulations in Appendix I (see 2001 Friend at Court).
f. The International Tennis Federation shall rule on the question of whether any ball or prototype complies with the above specifications or is otherwise approved, for play. Such ruling may be taken on its own initiative, or upon application by any party with a bona fide interest therein, including any player, equipment manufacturer or National Association or members thereof. Such rulings and applications shall be made in accordance with the applicable Review and Hearing Procedures of the International Tennis Federation (see Appendix III in 2001 Friend at Court).
ITF Note 1:
Any ball to be used in a tournament which is played under the Rules of Tennis must be named on the official ITF list of approved balls issued by the International Tennis Federation.
ITF Note 2:
From 1st January 2000 until 31st December 2001 two further types of tennis ball may be used on an experimental basis.
The first type is identical to those described in paragraphs a. to c. above except that the ball shall have a forward deformation of more than 0.195 inches (.495 cm.) and less than 0.235 inches (0.597 cm) and return deformation of more than 0.295 inches (0.749 cm) and less than 0.380 inches (0.965 cm). This type of ball shall be described as Ball Type 1 and may be used in either a pressurized or non-pressurized form.
Another type is identical to those described in paragraphs a. to c. above except that the size shall be more than 2.750 inches (6.985 cm) and less than 2.875 inches (7.302 cm) in diameter as determined by ring gauges and detailed in Appendix I, Section iv (See 2001 Friend at Court). This type of ball shall be described as Ball Type 3 and may be used in either a pressurized or non-pressurized form.
All other types of ball defined by Rule 3 shall be described as Ball Type 2.
For the purpose of tournaments played under this experiment:
1. Ball Type 1 (fast) should only be used for play on court surface types which have been classified as Category 1 (slow pace) (see Appendix I).
2. Ball Type 2 (medium) should only be used for play on court surface types which have been classified as Category 2 (medium/medium-fast pace) (see Appendix I in 2001 Friend at Court).
3. Ball Type 3 (slow) should only be used for play on court surface types which have been classified as Category 3 (fast pace) (see Appendix I in 2001 Friend at Court).
For non-professional play any ball type may be used on any surface type.
USTA Comment:
Professional play refers to tournaments conducted under the regulations of the ATP Tour, ITF, and WTA Tour. This includes Satellite, Futures, and Challenger tournaments.
USTA Comment:
For non-professional play, any ball type may be used in sanctioned tournaments if the ball has been approved by the ITF and the USTA. Matches played with any approved ball type shall be considered for ranking.
The Racket
Rackets failing to comply with the following specifications are not approved for play under the Rules of Tennis:
a. The hitting surface of the racket shall be flat and consist of a pattern of crossed strings connected to a frame and alternately interlaced or bonded where they cross; and the stringing pattern shall be generally uniform, and in particular not less dense in the center than in any other area. The racket shall be designed and strung such that the playing characteristics are identical on both faces. The strings shall be free of attached objects and protrusions other than those utilized solely and specifically to limit or prevent wear and tear or vibration, and which are reasonable in size and placement for such purposes.
b. The frame of the racket shall not exceed 29 inches (73.66 cm) in overall length, including the handle. The frame of the racket shall not exceed 12½ inches (31.75 cm) in overall width. The hitting surface shall not exceed 15½ inches (39.37 cm) in overall length, and 11½ inches (29.21 cm) in overall width.
c. The frame, including the handle, shall be free of attached objects and devices other than those utilized solely and specifically to limit or prevent wear and tear or vibration, or to distribute weight. Any objects and devices must be reasonable in size and placement for such purposes.
d. The frame, including the handle and the strings, shall be free of any device which makes it possible to change materially the shape of the racket, or to change the weight distribution in the direction of the longitudinal axis of the racket which would alter the swing moment of inertia, or to deliberately change any physical property which may affect the performance of the racket during the playing of a point.
The International Tennis Federation shall rule on the question of whether any racket or prototype complies with the above specifications or is otherwise approved, or not approved, for play. Such ruling may be undertaken on its own initiative, or upon application by any party with a bona fide interest therein, including any player, equipment manufacturer or National Association or members thereof. Such rulings and applications shall be made in accordance with the applicable Review and Hearing Procedures of the International Tennis Federation (see Appendix III in 2001 Friend at Court).
Case 1. Can there be more than one set of strings on the hitting surface of racket?
Decision. No. The rule clearly mentions a pattern, and not patterns, of crossed strings.
Case 2. Is the stringing pattern of a racket considered to be generally uniform and flat if the strings are on more than one plane?
Decision. No.
Case 3. Can vibration dampening devices be placed on the strings of a racket and if so, where can they be placed?
Decision. Yes; but such devices may be placed only outside the pattern of crossed strings.
Case 4. In the course of play, a player accidentally breaks the strings of his racket. Can he continue to play with the racket in this condition?
Decision. Yes
USTA Comment:
If after play has begun it is discovered that a player has been using an illegal racket or an illegally strung racket, all points played stand. The player must find another racket immediately. If the discovery occurs after the match is over, the match still counts.
Server and Receiver
The players shall stand on opposite sides of the net; the player who first delivers the ball shall be called the Server, and the other the Receiver.
Case 1. Does a player, attempting a stroke, lose the point if he crosses an imaginary line in the extension of the net,
a. before striking the ball,
b. after striking the ball?
Decision. He does not lose the point in either case by crossing the imaginary line and provided he does not enter the lines bounding his opponent's Court (Rule 20(e)). In regard to hindrance, his opponent may ask for the decision of the Umpire under Rules 21 and 25.
Case 2. The Server claims that the Receiver must stand within the lines bounding his Court. Is this necessary?
Decision. No. The Receiver may stand wherever he pleases on his own side of the net.
Choice of Ends and Service
The choice of ends and the right to be Server or Receiver in the first game shall be decided by toss. The player winning the toss may choose or require his opponent to choose:
a. The right to be Server or Receiver, in which case the other player shall choose the end; or
b. The end, in which case the other player shall choose the right to be Server or Receiver.
Case 1. Do players have the right to new choices if the match is postponed or suspended before it has started?
Decision. Yes. The toss stands, but new choices may be made with respect to service and end.
USTA Comment:
The toss shall be made before the warm-up. Choices should be made promptly after the toss and are irrevocable, except when the match is postponed or suspended before the start of the match.
The Service
The service shall be delivered in the following manner. Immediately before commencing to serve, the Server shall stand with both feet at rest behind (i.e. further from the net than) the base-line, and within the imaginary continuations of the center-mark and side-line. The Server shall then project the ball by hand into the air in any direction and before it hits the ground strike it with his racket, and the delivery shall be deemed to have been completed at the moment of the impact of the racket and the ball. A player with the use of only one arm may utilize his racket for the projection.
USTA Comment:
There is no restriction regarding the kind of service which may be used; that is, the player may use an underhand or overhand service at his discretion.
Case 1. May the Server in a singles game take his stand behind the portion of the base-line between the side-lines of the Singles Court and the Doubles Court?
Decision. No.
USTA Comment:
In singles, the server may stand anywhere in back of the baseline between the imaginary extensions of the inside edge of the center mark and the outside edge of the singles sideline.
Case 2. If a player, when serving, throws up two or more balls instead of one, does he lose that service?
Decision. No. A let should be called, but if the Umpire regards the action as deliberate he may take action under Rule 21.
Foot Fault
The Server shall throughout the delivery of the Service:
a. Not change his position by walking or running. The Server shall not by slight movements of the feet which do not materially affect the location originally taken up by him, be deemed "to change his position by walking or running".
b. Not touch with either foot any area other than that behind the base-line within the imaginary extensions of the center-mark and side-lines.
USTA Comment:
The key to understanding this rule is to realize that the Server's feet must be at rest immediately before beginning to serve. Immediately thereafter, the delivery of the service begins with any arm or racket motion and ends when the racket contacts the ball (or misses the ball in attempt to strike it).
A player commits a foot fault if after his feet are at rest but before he strikes the ball, either foot touches:
the Court, including the baseline;
any part of the imaginary extension of the center mark; or
beyond the imaginary extension of the outside edge of the sideline.
There can be no foot fault if the Server does not attempt to strike at the ball. As long as the Server makes no attempt to strike at the ball, it is immaterial whether he catches it in his hand or his racket or lets it drop to the ground.
USTA Comment:
This rule covers the most decisive stroke in the game, and there is no justification for its not being obeyed by players and enforced by officials. No official has the right to instruct any umpire to disregard violations of it. In a non-officiated match, the Receiver, or his partner, may call foot faults after all efforts (appeal to the server, request for an umpire, etc.) have failed and the foot faulting is so flagrant as to be clearly perceptible from the Receiver's side.
It is improper for any official to warn a player that he is in danger of having a foot fault called on him. On the other hand, if a player asks for an explanation of how he foot faulted, either the Line Umpire or the Chair Umpire should give him that information.
Delivery of Service
a. In delivering the service, the Server shall stand alternately behind the right and left halves of the Court beginning from the right in every game. If service from a wrong half of the Court occurs and is undetected, all play resulting from such wrong service or services shall stand, but the inaccuracy of station shall be corrected immediately it is discovered.
b. The ball served shall pass over the net and hit the ground within the Service Court which is diagonally opposite, or upon any line bounding such Court, before the Receiver returns it.
Service Fault
The Service is a fault:
a. If the Server commits any breach of Rules 7, 8 or 9(b);
b. If he misses the ball in attempting to strike it;
c. If the ball served touches a permanent fixture (other than the net, strap or band) before it hits the ground.
Case 1. After throwing a ball up preparatory to serving, the Server decides not to strike at it and catches it instead. Is it a fault?
Decision. No.
USTA Comment:
As long as the Server makes no attempt to strike at the ball, it is immaterial whether he catches it in his hand or his racket or lets it drop to the ground.
Case 2. In serving in a singles game played on a Doubles Court with doubles posts and singles sticks, the ball hits a singles stick and then hits the ground within the lines of the correct Service Court. Is this a fault or a let?
Decision. In serving it is a fault, because the singles stick, the doubles post, and that portion of the net or band between them are permanent fixtures. (Rules 2 and 10, and note to Rule 24.)
USTA Comment:
The significant point is that the part of the net and band "outside" the singles sticks is not part of the net over which this singles match is being played. Thus, such a serve is a fault under the provisions of subparagraph c. above. By the same token, this would be a fault also if it were a singles game played with permanent posts in the singles position. See Case 1 under Rule 24 for difference between "service" and "good return" with respect to a ball hitting a net post.
Second Service
After a fault (if it is the first fault) the Server shall serve again from behind the same half of the Court from which he served that fault, unless the service was from the wrong half, when, in accordance with Rule 9, the Server shall be entitled to one service only from behind the other half.
Case 1. A player serves from a wrong Court. He loses the point and then claims it was a fault because of his wrong station.
Decision. The point stands as played and the next service should be from the correct station according to the score.
Case 2. The point score being 15 all, the Server, by mistake, serves from the left-hand Court. He wins the point. He then serves again from the right-hand Court, delivering a fault. This mistake in station is then discovered. Is he entitled to the previous point? From which Court should he next serve?
Decision. The previous point stands. The next service should be from the left-hand Court, the score being 30/15, and the Server having served one fault.
When to Serve
The Server shall not serve until the Receiver is ready. If the latter attempts to return the service, he shall be deemed ready. If, however, the Receiver signifies that he is not ready, he may not claim a fault because the ball does not hit the ground within the limits fixed for the service.
USTA Comment:
The Server must wait until the Receiver is ready for the second service as well as the first, and if the Receiver claims to be not ready and does not make any effort to return a service, the Server's claim for the point may not be honored even though the service was good. However, the Receiver, having indicated he is ready, may not become unready unless some outside interference takes place.
The "Let"
In all cases where a let has to be called under the rules, or to provide for an interruption to play, it shall have the following interpretations:
a. When called solely in respective of a service that one service only shall be replayed.
b. When called under any other circumstance, the point shall be replayed.
Case 1. A service is interrupted by some cause outside those defined in Rule 14. Should the service only be replayed?
Decision. No, the whole point must be replayed.
USTA Comment:
If the interruption occurs during delivery of the second service, the Server gets two serves.
Example: On a second service a linesman calls "fault" and immediately corrects it, the Receiver meanwhile having let the ball go by. The Server is entitled to two serves on this ground: The corrected call means that the Server has put the ball into play with a good service, and once the ball is in play and a let is called, the point must be replayed. Note, however, that if the serve is an unmistakable ace -- that is, the Umpire is sure the erroneous call had no part in the Receiver's inability to play the ball -- the point should be declared for the Server.
If a delay between first and second serves is caused by the Receiver, an official, or outside interference, the whole point shall be replayed. If the delay is caused by the Server, the Server has one serve to come. A spectator's outcry (of "out," "fault," or other) is not a valid basis for replay of a point, but action should be taken to prevent a recurrence.
Case 2. If a ball in play becomes broken, should a let be called?
Decision. Yes.
USTA Comment:
A ball shall be regarded as having become "broken" if, in the opinion of the Umpire, it is found to have lost compression to the point of being unfit for further play, or unfit for any reason, and it is clear the defective ball was the one in play.
The Let in Service
The Service is a let:
a. If the ball served touches the net, strap or band, and is otherwise good, or, after touching the net, strap or band, touches the Receiver or anything which he wears or carries before hitting the ground.
b. If a service or a fault is delivered when the Receiver is not ready (see Rule 12).
In case of a let, that particular service shall not count, and the Server shall serve again, but a service let does not annul a previous fault.
Order of Service
At the end of the first game, the Receiver shall become Server, and the Server Receiver; and so on alternately in all the subsequent games of a match. If a player serves out of turn, the player who ought to have served shall serve as soon as the mistake is discovered, but all points scored before such discovery shall stand. A fault served before such discovery shall not stand. If a game shall have been completed before such discovery, the order of service shall remain as altered.
When Players Change Ends
The players shall change ends at the end of the first, third and every subsequent alternate game of each set, and at the end of each set unless the total number of games in such set is even, in which case the change is not made until the end of the first game of the next set.
If a mistake is made and the correct sequence is not followed the players must take up their correct station as soon as the discovery is made and follow their original sequence.
The Ball in Play
A ball is in play from the moment at which it is delivered in service. Unless a fault or a let is called it remains in play until the point is decided.
USTA Comment:
A point is not decided simply when, or because, a good shot has clearly passed a player, or when an apparently bad shot passes over a baseline or sideline. An outgoing ball is still definitely in play until it actually strikes the ground, backstop, a permanent fixture (other than the net, posts, singles sticks, cord or metal cable, strap or band), or a player. The same applies to a good ball, bounding after it has landed in the proper Court. A ball that becomes imbedded in the net is out of play.
USTA Comment:
When a ball is hit into the net and the player on the other side, thinking the ball is coming over, strikes at it and hits the net he loses the point if his touching the net occurs while the ball is still in play.
Case 1. A player fails to make a good return. No call is made and the ball remains in play. May his opponent later claim the point after the rally has ended?
Decision. No. The point may not be claimed if the players continue to play after the error has been made, provided the opponent was not hindered.
USTA Comment:
An out call on A's shot to B's Court must be made before B's return has either gone out of play or been hit by A. See Case 3 under Rule 29 regarding this situation in an umpired match.
Server Wins Point
The Server wins the point:
a. If the ball served, not being a let under Rule 14, touches the Receiver or anything which he wears or carries, before it hits the ground;
b. If the Receiver otherwise loses the point as provided by Rule 20.
Receiver Wins Point
The Receiver wins the point:
a. If the Server serves two consecutive faults;
b. If the Server otherwise loses the point as provided by Rule 20.
Player Loses Point
A player loses the point if:
a. He fails, before the ball in play has hit the ground twice consecutively, to return it directly over the net (except as provided in Rule 24(a) or (c)); or
b. He returns the ball in play so that it hits the ground, a permanent fixture, or other object, outside any of the lines which bound his opponent's Court (except as provided in Rule 24(a) or (c)); or
c. He volleys the ball and fails to make a good return even when standing outside the Court; or
USTA Comment:
A ball hitting a scoring device or other object attached to a net post results in loss of point to the striker.
d. In playing the ball he deliberately carries or catches it on his racket or deliberately touches it with his racket more than once; or
USTA Comment:
Only when there is a definite "second push" by the player does his shot become illegal, with consequent loss of point. The word "deliberately" is the key word in this rule. Two hits occurring in the course of a single continuous swing are not deemed a double hit.
e. He or his racket (in his hand or otherwise) or anything which he wears or carries touches the net, posts, singles sticks, cord or metal cable, strap or band, or the ground within his opponent's Court at any time while the ball is in play; or
USTA Comment:
Touching a pipe support that runs across the Court at the bottom of the net is interpreted as touching the net. See USTA Comment under Rule 23 for a ball which hits a pipe support.
f. He volleys the ball before it has passed the net; or
g. The ball in play touches him or anything that he wears or carries, except his racket in his hand or hands; or
USTA Comment:
This loss of point occurs regardless of whether the player is inside or outside the bounds of his Court when the ball touches him.
h. He throws his racket at and hits the ball; or
i. He deliberately and materially changes the shape of his racket during the playing of the point.
Case 1. In serving, the racket flies from the Server's hand and touches the net before the ball has touched the ground. Is this a fault, or does the player lose the point?
Decision. The Server loses the point because his racket touches the net whilst the ball is in play (Rule 20(e)).
Case 2. In serving, the racket flies from the Server's hand and touches the net after the ball has touched the ground outside the proper court. Is this a fault, or does the player lose the point?
Decision. This is a fault because the ball was out of play when the racket touched the net.
Case 3. A and B are playing against C and D, A is serving to D, C touches the net before the ball touches the ground. A fault is then called because the service falls outside the Service Court. Do C and D lose the point?
Decision. The call "fault" is an erroneous one. C and D had already lost the point before "fault" could be called, because C touched the net whilst the ball was in play (Rule 20(e)).
Case 4. May a player jump over the net into his opponent's Court while the ball is in play and not suffer penalty?
Decision. No. He loses the point (Rule 20(e)).
Case 5. A cuts the ball just over the net, and it returns to A's side. B, unable to reach the ball, throws his racket and hits the ball. Both racket and ball fall over the net on A's Court. A returns the ball outside of B's Court. Does B win or lose the point?
Decision. B loses the point (Rule 20(e) and (h)).
Case 6. A player standing outside the service Court is struck by a service ball before it has touched the ground. Does he win or lose the point?
Decision. The player struck loses the point (Rule 20(g)), except as provided under Rule 14(a).
Case 7. A player standing outside the Court volleys the ball or catches it in his hand and claims the point because the ball was certainly going out of court.
Decision. In no circumstances can he claim the point:
i. If he catches the ball he loses the point under Rule 20(g).
ii. If he volleys it and makes a bad return he loses the point under Rule 20(c).
iii. If he volleys it and makes a good return, the rally continues.
Player Hinders Opponent
If a player commits any act which hinders his opponent in making a stroke, then, if this is deliberate, he shall lose the point or if involuntary, the point shall be replayed.
Case 1. Is a player liable to a penalty if in making a stroke he touches his opponent?
Decision. No, unless the Umpire deems it necessary to take action under Rule 21.
Case 2. When a ball bounds back over the net, the player concerned may reach over the net in order to play the ball. What is the ruling if the player is hindered from doing this by his opponent?
Decision. In accordance with Rule 21, the Umpire may either award the point to the player hindered, or order the point to be replayed (see also Rule 25).
Case 3. Does an involuntary double hit constitute an act which hinders an opponent within Rule 21?
Decision. No.
USTA Comment:
"Deliberate" means a player did what he intended to do, although the resulting effect on his opponent might or might not have been what he intended. Example: a player, after his return is in the air, gives advice to his partner in such a loud voice that his opponent is hindered. "Involuntary" means a non-intentional act such as a hat blowing off or a scream resulting from a sudden wasp sting.
Ball Falls on Line
A ball falling on a line is regarded as falling in the Court bounded by that line.
USTA Comment:
In a non-officiated match, each player makes the call on any ball hit toward his side of the net. If a player cannot call a ball out with certainty, he should regard it as good. In doubles, normally the Receiver's partner makes the calls with respect to the service line, with the Receiver calling the side and center lines, but either partner may make the call on any ball he clearly sees out.
Ball Touches Permanent Fixtures
If the ball in play touches a permanent fixture (other than the net, posts, singles sticks, cord or metal cable, strap or band) after it has hit the ground, the player who struck it wins the point; if before it hits the ground, his opponent wins the point.
USTA Comment:
A ball in play that strikes a pipe support running across the Court at the base of the net is treated the same as a ball landing on clear ground. See USTA Comment under Rule 20(e) for a player who touches a pipe support.
Case 1. A return hits the Umpire or his chair or stand. The player claims that the ball was going into Court.
Decision. He loses the point.
A Good Return
It is a good return:
a. If the ball touches the net, posts, singles sticks, cord or metal cable, strap or band, provided that it passes over any of them and hits the ground within the Court; or
b. If the ball, served or returned, hits the ground within the proper Court and rebounds or is blown back over the net, and the player whose turn it is to strike reaches over the net and plays the ball, provided that he does not contravene Rule 20(e); or
c. If the ball is returned outside the posts, or singles sticks, either above or below the level of the top to the net, even though it touches the posts or singles sticks, provided that it hits the ground within the proper Court; or
d. If a player's racket passes over the net after he has returned the ball, provided the ball passes the net before being played and is properly returned; or
e. If a player succeeds in returning the ball, served or in play, which strikes a ball lying in the Court.
USTA Comment:
Paragraph (e) of the rule refers to a ball lying on the Court at the start of the point as a result of a service let or fault or as a result of a player dropping it. If a ball in play strikes a rolling or stationary "foreign" ball that has come from elsewhere after the point started, a let should be played. See Case 7 under Rule 25 which pertains to an object other than a ball that is being used in the match.
ITF Note:
In a singles match, if, for the sake of convenience, a Doubles Court is equipped with singles sticks for the purpose of a singles game, then the doubles posts and those portions of the net, cord or metal cable and the band outside such singles sticks shall at all times be permanent fixtures, and are not regarded as posts or parts of the net of a singles game.
USTA Comment:
In doubles this would be a "through" loss of point.
A return that passes under the net cord between the singles stick and adjacent doubles post without touching either net cord, net or doubles post and falls within the court, is a good return.
Case 1. A ball going out of Court hits a net post or singles stick and falls within the lines of the opponent's Court. Is the stroke good?
Decision. If a service: no, under Rule 10(c). If other than a service: yes, under Rule 24(a).
Case 2. Is it a good return if a player returns the ball holding his racket in both hands?
Decision. Yes.
Case 3. The service, or ball in play, strikes a ball lying in the Court. Is the point won or lost thereby?
Decision. No. Play must continue. If it is not clear to the Umpire that the right ball is returned a let should be called.
USTA Comment:
A ball that is touching a boundary line is considered to be "lying in the Court."
Case 4. May a player use more than one racket at any time during play?
Decision. No. The whole implication of the Rules is singular.
Case 5. May a player request that a ball or balls lying in his opponent's Court be removed?
Decision. Yes, but not while a ball is in play.
USTA Comment:
This request must be honored.
Hindrance of a Player
In case a player is hindered in making a stroke by anything not within his control, except a permanent fixture of the Court, or except as provided for in Rule 21, a let shall be called.
USTA Comment:
See Rule 13 and its USTA Comments regarding lets.
Case 1. A spectator gets into the way of a player, who fails to return the ball. May the player then claim a let?
Decision. Yes. If in the Umpire's opinion he was obstructed by circumstances beyond his control, but not if due to permanent fixtures of the Court or the arrangements of the ground.
Case 2. A player is interfered with as in Case No.1, and the Umpire calls a let. The Server had previously served a fault. Has he the right to two services?
Decision. Yes. As the ball is in play, the point, not merely the stroke, must be replayed as the Rule provides.
Case 3. May a player claim a let under Rule 25 because he thought his opponent was being hindered, and consequently did not expect the ball to be returned?
Decision. No.
Case 4. Is a stroke good when a ball in play hits another ball in the air?
Decision. A let should be called unless the other ball is in the air by the act of one of the players, in which case the Umpire will decide under Rule 21.
Case 5. If an Umpire or other judge erroneously calls "fault" or "out", and then corrects himself, which of the calls shall prevail?
Decision. A let must be called unless, in the opinion of the Umpire, neither player is hindered in his game, in which case the corrected call shall prevail.
Case 6. If the first ball served -- a fault -- rebounds, interfering with the Receiver at the time of the second service, may the Receiver claim a let?
Decision. Yes. But if he had an opportunity to remove the ball from the Court and negligently failed to do so, he may not claim a let.
Case 7. Is it a good stroke if the ball touches a stationary or moving object on the Court?
Decision. It is a good stroke unless the stationary object came into Court after the ball was put into play in which case a let must be called. If the ball in play strikes an object moving along or above the surface of the Court a let must be called.
Case 8. What is the ruling if the first service is a fault, the second service correct, and it becomes necessary to call a let either under the provision of Rule 25 or if the Umpire is unable to decide the point?
Decision. The fault shall be annulled and the whole point replayed.
Score in a Game
a. If a player wins his first point, the score is called 15 for that player; on winning his second point, the score is called 30 for that player; on winning his third point, the score is called 40 for that player, and the fourth point won by a player is scored game for that player except as below:
If both players have won three points, the score is called deuce; and the next point won by a player is scored advantage for that player.
If the same player wins the next point, he wins the game; if the other player wins the next point the score is again called deuce; and so on, until a player wins the two points immediately following the score at deuce, when the game is scored for that player.
b. Optional Alternative Scoring System
The No-Ad System of Scoring may be adopted as an alternative to the traditional scoring system in paragraph (a) of this Rule provided the decision is announced in advance of the event.
In this case, the following Rules shall be effective:
If a player wins his first point, the score is called 15 for that player; on winning his second point, the score is called 30 for that player; on winning his third point, the score is called 40 for that player, and the fourth point won by a player is scored game for that player except as below:
If both players have won three points, the score is called deuce; one deciding point shall then be played. The receiver shall choose whether he wishes to receive the service from the right-half of the court or the left-half of the court. The player who wins the deciding point is scored the game.
Doubles
In doubles a similar procedure to that for singles shall apply. At deuce the Receiving Team shall choose whether it wishes to receive the Service from the right-half of the court or the left-half of the court. The team who wins the deciding point is scored the game.
Mixed Doubles
In mixed doubles, a slightly different procedure will apply as follows: At deuce, with the male player serving, he shall serve to the male player of the opposing team irrespective of which half of the court he is standing, and when the female player is serving, she shall serve to the female player of the opposing team.
USTA Comment:
In a non-officiated match the Server should announce, in a voice audible to his opponent and spectators, the set score at the beginning of each game, and point scores as the game goes on. Misunderstandings will be avoided if this practice is followed.
USTA Comment:
USTA Regulation I.V.II. authorizes the Referee to switch to No-Ad scoring before the start of any round without prior notice in all tournaments other than national junior championships after inclement weather or other factors cause the tournament to fall behind its published schedule.
Score in a Set
a. A player (or players) who first wins six games wins a set; except that he must win by a margin of two games over his opponent and where necessary a set shall be extended until this margin is achieved.
b. The tie-break system of scoring may be adopted as an alternative to the advantage set system in paragraph (a) of this Rule provided the decision is announced in advance of the match.
In this case, the following Rules shall be effective:
USTA Comment:
USTA Regulation I.V.3. requires that a Set Tie-Break be played in all sets. The Set Tie-Break is the tie-break game described in Rule 27(b).
The tie-break shall operate when the score reaches six games all in any set except in the third or fifth set of a three-set or five-set match respectively when an ordinary advantage set shall be played, unless otherwise decided and announced in advance of the match.
The following system shall be used in a tie-break game.
USTA Comment:
USTA Regulation I.V.4. authorizes the use of the Set Tie-Break or the Match Tie-Break in lieu of the third or final set in selected tournaments.
Singles
i. A player who first wins seven points shall win the game and the set provided he leads by a margin of two points. If the score reaches six points all the game shall be extended until this margin has been achieved. Numerical scoring shall be used throughout the tie-break game.
ii. The player whose turn it is to serve shall be the Server for the first point. His opponent shall be the Server for the second and third points and thereafter each player shall serve alternately for two consecutive points until the winner of the game and set has been decided.
iii. From the first point, each service shall be delivered alternately from the right and left Courts, beginning from the right Court. If service from a wrong half of the Court occurs and is undetected, all play resulting from such wrong service or services shall stand, but the inaccuracy of station shall be corrected immediately it is discovered.
iv. Players shall change ends after every six points and at the conclusion of the tie-break game.
v. The tie-break game shall count as one game for the ball change, except that, if the balls are due to be changed at the beginning of the tie-break, the change shall be delayed until the second game of the following set.
Doubles
In doubles the procedure for singles shall apply. The player whose turn it is to serve shall be the Server for the first point. Thereafter each player shall serve in rotation for two points, in the same order previously in that set, until the winners of the game and set have been decided.
Rotation of Service
The player (or pair in the case of doubles) whose turn it was to serve first in the tie-break game shall receive service in the first game of the following set.
Case 1. At six all the tie-break is played, although it has been decided and announced in advance of the match that an advantage set will be played. Are the points already played counted?
Decision. If the error is discovered before the ball is put in play for the second point, the first point shall count but the error shall be corrected immediately. If the error is discovered after the ball is put in play for the second point the game shall continue as a tie-break game.
Case 2. At six all, an advantage game is played, although it has been decided and announced in advance of the match that a tie-break will be played. Are the points already played counted?
Decision. If the error is discovered before the ball is put in play for the second point, the first point shall be counted but the error shall be corrected immediately. If the error is discovered after the ball is put in play for the second point an advantage set shall be continued. If the score thereafter reaches eight games all or a higher even number, a tie-break shall be played.
Case 3. If during a tie-break in a singles or doubles game, a player serves out of turn, shall the order of service remain as altered until the end of the game?
Decision. If a player has completed his turn of service the order of service shall remain as altered. If the error is discovered before a player has completed his turn of service the order of service shall be corrected immediately and any points already played shall count.
Alternative scoring methods approved until 31 December 2001 can be found in Appendix II.
Maximum Number of Sets
A match can be played to the best of 3 sets (the player/team needs to win 2 sets to win the match) or to the best of 5 sets (the player/team needs to win 3 sets to win the match).
Role of Court Officials
In matches where an Umpire is appointed, his decision shall be final; but where a Referee is appointed, an appeal shall lie to him from the decision of an Umpire on a question of law, and in all such cases the decision of the Referee shall be final.
In matches where assistants to the Umpire are appointed (Linespersons, Net-cord Judges, Foot-fault Judges) their decisions shall be final on questions of fact except that if in the opinion of an Umpire a clear mistake has been made he shall have the right to change the decision of an assistant or order a let to be played. When such an assistant is unable to give a decision he shall indicate this immediately to the Umpire who shall give a decision. When an Umpire is unable to give a decision on a question of fact he shall order a let to be played.
In Davis Cup matches or other team competitions where a Referee is on Court, any decision can be changed by the Referee, who may also instruct an Umpire to order a let to be played.
The Referee, in his discretion, may at any time postpone a match on account of darkness or the condition of the ground or the weather. In any case of postponement the previous score and previous occupancy of courts shall hold good, unless the Referee and the players unanimously agree otherwise.
USTA Comment:
See fourth USTA Comment under Rule 30 regarding resumption of suspended match.
Case 1. The Umpire orders a let, but a player claims that the point should not be replayed. May the Referee be requested to give a decision?
Decision. Yes. A question of tennis law, that is, an issue relating to the application of specific facts, shall first be determined by the Umpire. However, if the Umpire is uncertain or if a player appeals from his determination, then the Referee shall be requested to give a decision, and his decision is final.
Case 2. A ball is called out, but a player claims that the ball was good. May the Referee give a ruling?
Decision. No. This is a question of fact, that is an issue relating to what actually occurred during a specific incident, and the decision of the on-court officials is therefore final.
Case 3. May an Umpire overrule a Linesman at the end of a rally if, in his opinion, a clear mistake has been made during the course of a rally?
Decision. No. An Umpire may overrule a Linesman only if he does so immediately after the mistake has been made.
USTA Comment:
Examples of questions of fact include whether a ball is in or out, whether a ball touched a player, whether a ball bounced twice, and whether the server's foot touched the baseline before hitting a serve. Examples of questions of tennis law include whether an act was a hindrance; whether a player should have been assessed a code violation for his conduct; and the procedure for correcting errors in serving order, serving and receiving position, and ends.
USTA Comment:
See Rule 17, Case 1, regarding non-officiated matches.
Case 4. A Linesman calls a ball out. The Umpire was unable to see clearly, although he thought the ball was in. May he overrule the Linesman?
Decision. No. An Umpire may overrule if he considers that a call was incorrect beyond all reasonable doubt. He may overrule a ball determined good by a Linesman only if he has been able to see a space between the ball and the line; and he may overrule a ball determined out, or a fault, by a Linesman only if he has seen the ball hit the line, or fall inside the line.
Case 5. May a Linesman change his call after the Umpire has given the score?
Decision. Yes. If a Linesman realizes he has made an error, he may make a correction provided he does so immediately.
Case 6. A player claims his return shot was good after a Linesman called "out." May the Umpire overrule the Linesman?
Decision. No. An Umpire may never overrule as a result of a protest or an appeal by a player.
Continuous Play and Rest Periods
Play shall be continuous from the first service until the match is concluded, in accordance with the following provisions:
a. If the first service is a fault, the second service must be struck by the Server without delay. The Receiver must play to the reasonable pace of the Server and must be ready to receive when the Server is ready to serve.
When changing ends a maximum of ninety (90) seconds shall elapse from the moment the ball goes out of play at the end of the game to the time the ball is struck for the first point of the next game.
However, after the first game of each set and during a tie-break, play shall be continuous and the players shall change ends without a rest period.
At the conclusion of each set, there shall be a set break of a maximum of one hundred and twenty (120) seconds from the moment the ball goes out of play at the end of the game to the time the ball is struck for the first point of the next game.
The Umpire shall use his discretion when there is interference which makes it impractical for play to be continuous.
The organizers of international circuits and team events recognized by the ITF may determine the time allowed between points, which shall be a maximum of twenty (20) seconds from the moment the ball goes out of play at the end of one point to the time the ball is struck for the next point.
b. Play shall never be suspended, delayed or interfered with for the purpose of enabling a player to recover his strength, breath, or physical condition. However, in the case of a treatable medical condition, the Umpire may allow a one-time three minute suspension for that injury.
USTA Comment:
The 20-second rule applies only to certain international circuits and team events recognized by the ITF. When practical, in USTA sanctioned tournaments using a certified official in direct observation of the match, the time which shall elapse from the moment the ball goes out of play at the end of the point to the time the ball is struck shall not exceed 25 seconds.
c. If, through circumstances outside the control of the player, his clothing, footwear or equipment (excluding racket) becomes out of adjustment in such a way that it is impossible or undesirable for him to play on, the Umpire may suspend play while the maladjustment is rectified.
USTA Comment:
If equipment other than a racket becomes unusable through circumstances outside the control of the player, play may be suspended for a reasonable period and the player may leave the Court to correct the problem. If a racket or racket string is broken, Rule 30 does not permit play to be suspended. A player who leaves the Court to get a replacement is subject to code violation(s) under the Point Penalty System.
USTA Comment:
Loss of, or damage to, a contact lens or eyeglasses shall be treated as equipment maladjustment. All players must follow the same rules with respect to suspending play, even though in misty but playable weather, a player who wears glasses may be handicapped.
d. The Umpire may suspend or delay play at any time as may be necessary and appropriate.
e. After the third set, or when women take part the second set, either player shall be entitled to a rest, which shall not exceed 10 minutes, or in countries situated between latitude 15 degrees north and latitude 15 degrees south, 45 minutes and furthermore, when necessitated by circumstances not within the control of the players, the Umpire may suspend play for such a period as he may consider necessary. If play is suspended and is not resumed until a later day the rest may be taken only after the third set (or when women take part the second set) of play on such a later day, completion of an unfinished set being counted as one set.
If play is suspended and is not resumed until 10 minutes have elapsed in the same day the rest may be taken only after three consecutive sets have been played without interruption (or when women take part two sets), completion of an unfinished set being counted as one set.
Any nation and/or committee organizing a tournament, match or competition, is at liberty to modify this provision or omit it from its regulations provided this is announced before the event commences. With respect to the Davis Cup and Fed Cup, only the International Tennis Federation may modify this provision or omit it from its Regulations.
USTA Comment:
When a match is resumed after a suspension of more than ten minutes, it is permissible for the players to engage in a re-warm-up that may be of the same duration as that at the start of the match. The preferred method is to warm-up with other used balls and then insert the match balls when play starts. If the match balls are used in the re-warm-up, then the next ball change will be two games sooner. There shall be no re-warm-up after an authorized intermission or after a suspension of ten minutes or less.
USTA Comment:
When there are no ballpersons, this time may be extended to 10 minutes.
f. A tournament committee has the discretion to decide the time allowed for a warm-up period prior to a match but this may not exceed five minutes and must be announced before the event commences.
g. When approved point penalty and non-accumulative point penalty systems are in operation, the Umpire shall make his decisions within the terms of those systems.
h. Upon violation of the principle that play shall be continuous the Umpire may, after giving due warning, disqualify the offender.
Coaching
During the playing of a match in a team competition, a player may receive coaching from a captain who is sitting on the court only when he changes ends at the end of a game, but not when he changes ends during a tie-break game.
A player may not receive coaching during the playing of any other match. The provisions of this rule must be strictly construed.
After due warning an offending player may be disqualified. When an approved point penalty system is in operation, the Umpire shall impose penalties according to that system.
Case 1. Should a warning be given, or the player be disqualified, if the coaching is given by signals in an unobtrusive manner?
Decision. The Umpire must take action as soon as he becomes aware that coaching is being given verbally or by signals. If the Umpire is unaware that coaching is being given, a player may draw his attention to the fact that advice is being given.
Case 2. Can a player receive coaching during an authorized rest period under Rule 30(e), or when play is interrupted and he leaves the court?
Decision. Yes. In these circumstances, when the player is not on the court, there is no restriction on coaching.
USTA Comment:
Coaching is not permitted in the USA Adult and Senior League Program except during authorized rest periods.
USTA Comment:
No player may receive coaching during a toilet visit.
ITF Note:
The word "coaching" includes any advice or instruction.
Ball Change
In cases where balls are to be changed after a specified number of games, if the balls are not changed in the correct sequence, the mistake shall be corrected when the player, or pair in the case of doubles, who should have served with new balls is next due to serve. Thereafter the balls shall be changed so that the number of games between changes shall be that originally agreed.
The Doubles Game
The above Rules shall apply to the Doubles Game except as so noted in rules 34-40.
The Doubles Court
For the Doubles Game, the court shall be 36 feet (10.97m.) in width, i.e. 41 feet 2 feet (1.37m.) wider on each side than the Court for the Singles Game, and those portions of the singles side-lines which lie between the two service-lines shall be called the service side-lines. In other respects, the Court shall be similar to that described in Rule 1, but the portions of the singles side-lines between the base-line and service-line on each side of the net may be omitted if desired.
ITF Notes:
i. If a singles court only is required, no lines are necessary outside the points a, b, c, d, but the court can be measured out as above. Alternatively, the corners of the base-line (c, d) can be found if preferred by pegging the two tapes at a and b instead of at A and B, and by then using lengths of 47'5" (14.46 m) and 39'0" (11.89 m). The net posts will be at n, n, and a 33'0" (10 m) singles net should be used.
ii. When a combined doubles and singles court with a doubles net is used for singles, the net must be supported at the points n, n, to a height of 3 feet 6 inches (1.07 m) by means of two posts, called "singles sticks," which shall be not more than 3 inches (7.5 cm) square or 3 inches (7.5 cm) in diameter. The centers of the singles sticks shall be 3 feet (.914 m) outside the singles court on each side.
To assist in the placing of these singles sticks it is desirable that the points n, n, should each be shown with a white dot when the court is marked.
The net shall be extended fully so that it fills completely the space between the two posts and shall be of sufficiently small mesh to prevent the ball passing through. The height of the net shall be 3 feet (.914 m) at the center, where it shall be held down taut by a strap not more than 2 inches (5 cm) wide and completely white in color. There shall be a band covering the cord or metal cable and the top of the net of not less than 2 inches (5 cm) nor more than 21 feet 2 inches (6.35 cm) in depth on each side and completely white in color. There shall be no advertisement on the net, strap, band or singles sticks.
USTA Comment:
The Server has the right in doubles to stand anywhere in back of the baseline between the imaginary extension of the inside edge of the center mark and the imaginary extension of the outside edge of the doubles sideline.
Order of Service in Doubles
The order of serving shall be decided at the beginning of each set as follows:
The pair who have to serve in the first game of each set shall decide which partner shall do so and the opposing pair shall decide similarly for the second game. The partner of the player who served in the first game shall serve in the third; the partner of the player who served in the second game shall serve in the fourth, and so on in the same order in all the subsequent games of a set.
Case 1. In doubles, one player does not appear in time to play, and his partner claims to be allowed to play single-handed against the opposing players. May he do so?
Decision. No.
Order of Receiving in Doubles
The order of receiving the service shall be decided at the beginning of each set as follows:
The pair who have to receive the service in the first game shall decide which partner shall receive the first service, and that partner shall continue to receive the first service in every odd game throughout that set.
The opposing pair shall likewise decide which partner shall receive the first service in the second game and that partner shall continue to receive the first service in every even game throughout that set. Partners shall receive the service alternately throughout each game.
Case 1. Is it allowable in doubles for the Server's partner or the Receiver's partner to stand in a position that obstructs the view of the Receiver?
Decision. Yes. The Server's partner or the Receiver's partner may take any position on his side of the net in or out of the Court that he wishes.
Service out of Turn in Doubles
If a partner serves out of his turn, the partner who ought to have served shall serve as soon as the mistake is discovered, but all points scored, and any faults served before such discovery, shall be reckoned. If a game shall have been completed before such discovery, the order of service remains as altered.
USTA Comment:
For an exception to Rule 37, see Case 3 under Rule 27.
Error in Order of Receiving in Doubles
If during a game the order of receiving the service is changed by the Receivers it shall remain as altered until the end of the game in which the mistake is discovered, but the partners shall resume their original order of receiving in the next game of that set in which they are Receivers of the service.
Service Fault in Doubles
The service is a fault as provided for by Rule 10, or if the ball touches the Server's partner or anything which he wears or carries; but if the ball served touches the partner of the Receiver, or anything which he wears or carries, not being a let under Rule 14(a) before it hits the ground, the Server wins the point.
Playing the Ball in Doubles
The ball shall be struck alternately by one or other player of the opposing pairs, and if a player touches the ball in play with his racket in contravention of this Rule, his opponents win the point.
ITF Note 1:
Except where otherwise stated, every reference in these Rules to the masculine includes the feminine gender.
ITF Note 2:
See Rule 26(b) with regard to the Optional Alternative Scoring System in Doubles and Mixed.
USTA Comment:
The partners themselves do not have to "alternate" in making returns. In the course of making one return, only one member of a doubles team may hit the ball. If both of them hit the ball, either simultaneously or consecutively, it is an illegal return. Mere clashing of rackets does not make a return illegal unless it is clear that more than one racket touched the ball.
Rules of Wheelchair Tennis
The game of wheelchair tennis follows the same rules as able-bodied tennis as endorsed by the International Tennis Federation except the wheelchair tennis player is allowed two bounces of the ball. The player must return the ball before it hits the ground a third time. The wheelchair is part of the body and all applicable ITF Rules which apply to a player's body shall apply to the wheelchair.
The Competitive Wheelchair Tennis Player
a. In order to be eligible to compete in sanctioned ITF wheelchair tennis tournaments and the paralympic games, a player must have a medically diagnosed permanent mobility-related physical disability. This permanent physical disability must result in a substantial or total loss of function in one or more lower extremities. If, as a result of these functional limitations, the player is unable to play competitive able-bodied tennis (that is, having the mobility to cover the court with adequate speed), then the player is eligible to play competitive wheelchair tennis in sanctioned ITF wheelchair tennis tournaments.
b. Examples of permanent disabilities that meet the eligibility criteria are: paralysis; amputation; radiological evidence of limb shortening; partial to full joint ankylosis or joint replacement. Such physical disabilities must consistently interfere with functional mobility. Findings such as soft tissue contracture, ligamentous instability, edema or disuse atrophy, or symptoms such as pain or numbness, without other eligibility criteria listed above shall not be considered a permanent physical disability.
c. A quadriplegic division player shall be characterized as one who meets the criteria for permanent physical disability as defined above in at least three extremities.
Any questions or appeal as to a player's eligibility to participate under this rule will be decided under the procedures listed in Appendix IV (See 2001 Friend at Court).
The Service
a. The served ball may, after hitting the ground in the service court, hit the ground once again within the bounds of the court or it may hit the ground outside the court boundaries before the receiver returns it.
b. The service shall be delivered in the following manner. Immediately before commencing to serve, the server shall be in a stationary position. The server shall then be allowed one push before striking the ball.
c. The server shall throughout the delivery of the service not touch with any wheel, any area other than that behind the baseline within the imaginary extension of the center mark and sideline.
d. If conventional methods for the service are physically impossible for a quadriplegic player, then such a player or another individual may drop the ball for such a player. However, the same method of serving must be used each time.
The Ball In Play
The ball is in play until the point is decided. The ball must be returned into the opponent's court prior to it touching the ground a third time. The second bounce can be either in or out of the court boundaries.
Player Loses Point
A player loses a point if:
a. He fails to return the ball before it has touched the ground three times.
b. He uses any part of his feet or lower extremities against the ground or against any wheel while the ball is in play.
c. He fails to keep one buttock in contact with his wheelchair seat when contacting the ball.
Wheelchair/Able-Bodied Tennis
Where a wheelchair player as defined in Rule I above, is playing with or against an able-bodied person in singles or in doubles, the Rules of Wheelchair Tennis shall apply for the wheelchair player while the Rules of Tennis for able-bodied tennis shall apply for the able-bodied player. In this instance, the wheelchair player is allowed two bounces while the able-bodied player is allowed only one bounce.
ITF Note:
The definition of lower extremities is: the lower limb, including the buttocks, hip, thigh, leg, ankle, and foot.
Appendix II: Alternative Scoring methods (Rule 27)
"Short" sets
The first player/team who wins four games wins the Set, provided there is a margin of two games over the opponent(s). If the score reaches four games all, a tie-break game shall be played.
Deciding tie-break game
When the score in a match is one set all, or two sets all in best of five sets matches, one tie-break game shall be played to decide the match. This tie-break game replaces the deciding final set.
Deciding "sudden death"
When the score in the match is one set all, or two sets all in best of five sets matches, the match shall be decided by a Sudden Death. The first player/team who wins two games wins the Set, provided there is a margin of two games over the opponent(s). If the score reaches two games all, a tie-break game shall be played.
International Tennis Federation Rule 69
The official and decisive text to the Rules of Tennis shall be for ever in the English language and no alteration or interpretation of such Rules shall be made except at an Annual General Meeting of the Council, nor unless notice of the resolution embodying such alteration shall have been received by the Federation in accordance with Article 16 of the Constitution of ITF Ltd. (Notice of Resolutions) and such resolution or one having the like effect shall be carried by a majority of two-thirds of the votes recorded in respect of the same.
Any alteration so made shall take effect as from the first day of January following unless the Meeting shall by the like majority decide otherwise.
The Board of Directors shall have power, however, to settle all urgent questions of interpretation subject to confirmation at the General Meeting next following.
This Rule shall not be altered at any time without the unanimous consent of a General Meeting of the Council.
USTA Comment:
The ITF, not the USTA, is responsible for the Rules of Tennis. Amendments to the Rules of Tennis are made through the procedures of the ITF. Rule 69 of the ITF controls the manner in which amendments may be made to the Rules of Tennis.

String Gauges

Below are the Tennis Industry Association's gauge standardization specifications. The string gauge is usually measured with the string under tension. For example, a string that measures 1.26 mm unstrung would appear to be either a 16 or 16L. When strung, however, the diameter might become 1.21, which would make it a 17-gauge string.

U.S. Int'l. Diameter
13 12 1.65-1.80 mm
14 11 1.50-1.65 mm
15 9.5 1.41-1.49 mm
15L 9 1.33-1.41 mm
16 8.5 1.26-1.34 mm
16L 8 1.22-1.30 mm
17 7.5 1.16-1.24 mm
18 7 1.06-1.16 mm
19 4 0.90-1.06 mm
20 3.5 0.80-0.90 mm
21 3 0.70-0.80 mm
22 2.5 0.60-0.70 mm

Tennis Court Dimensions


2008年1月28日星期一

如何对付“牛皮糖”型网球选手

在网球场上,有这样一类 “牛皮糖”型选手。他们韧性十足,在比赛中自始至终遵循着一条原则:把球打过去,等待对手失误。这样的选手在温布尔顿和美国公开赛上不会太多,但在少年比赛和业余比赛中会出现一大把。他们的风格可能并不洒脱,但是,如果他们道行深厚的话,他们简直可以把对手逼疯。或许,你就有被这样的选手“蹂躏折磨”后落败的痛苦经历?在离开比赛场地时,你头脑中只会不断闪出这样一个问题:“我怎么会输给他!?我比他打得好得多!”不过,在心中反复追部自己工不能减轻半点痛苦和羞辱,只有一件事可以使你摆脱梦魇:复仇!   

下面这十个方法可能对你的复仇计划有所帮助。   

1.了解对手   

"牛皮糖"型选手的普遍特点是这样的:站在底线后,回击出一个个又高又深、安全无误的落地球,意志坚强,从不轻言放弃。他们希望用这种方式折磨你,让你失去耐心和斗志。   

2.打出角度   

如果你没有什么重型武器,要想制服“牛皮糖”对手着实不易。他们可以“软化你的来球并回击给你。如果你聪明,那你就建立起这样一种模式:用角度球打出空当来。即让你的对手大幅度地移动,让他离开他击球感觉最舒服的位置。在此基础上,你要乘胜追击,要么继续逼 对手,要么上网截击得分。   

3.捕捉战机   

在对垒“牛皮糖”对手时你不要落入对手消磨你耐心的陷阱中。在不恰当的攻击时机攻击往往是与这类选手对阵时最常犯的毛病。想要一拍打死对手以解心头之恨,不是不可以,你要确定来球是一个短球,而不是在底线后一两米的球。主动得分球应该发生在攻击位置上。   

4.扰乱步法   

“牛皮糖”对手往往有着良好的步法。他们有时甚至希望你将球击到空当处,这样他们就有了一个展示移动速度的机会。他们有着充沛的体能,这保证他们能将那坚韧不拔的打法进行到底。对付他们,聪明的打法除了多采用截击外,打落地球时打在他们的“身后”非常重要,这将扰乱他们的重心移动和步法,并让他们难以判断,下一个球你会打在他们的空当处,这样一来,空当处会显得更加开阔。   

5.主动攻击   

“牛皮糖”球手愿意看到你消极被动地跟着他的节奏走,而不愿意看到你逼迫他,使他不得不发起进攻。因为他们往往没有杀伤力很强的武器。你一定要看准机会,掌握主动。如果你得到一个短球,那么就准备随球上网吧。回球时最好将球打到他们的中路,并且打深些,这样,他们就维以打出有角度的穿越球。当你在网前频频得手时,巨大的压力就传递给了“牛皮糖”们。

6.上网时机   

和“牛皮糖”对手比赛,他们肯定会奉送给你一顿又高又深的“月芽球”大餐这是他们的强项。聪明的回应方法是回一个同样高而深的球,然后上网。但关键是:不要马上随球上网,要耐心!在大多数情况下,他们不会在球处有上升期时击球。相反,他们会退后一两步,等球落下后再打。上时机就是在他们退后击球时。把握这样的时机会让他们感到迷惑,处理球时会出现犹豫,他们会搞不清楚你下一个球会上网还是不上网。   

7.攻击发球   

大多数“牛皮糖”对手没有一个强劲的一发,二发往往也比较弱。这时就是你攻击的黄金时刻。如果你的接发球很具攻击性,就会使他们考虑要加强发球的威胁性。这将直接导致双误的频繁产生。没有什么比这样让“牛皮糖”们白白送分更甜美的事了。   

8.引蛇出洞   

如果一个选手总喜欢“胶”在底线,那他可能就是害怕变化。“牛皮糖”选手通常就是这样,截击和高压不是他们的长处。明白了这一点,那么打出下坠球和短球会让他们左右为难:随球上网又不行,击完球后再退后又显仓促。所以,你要努力使他们离开让他们舒服的底线,来到一个很不自在的“异域他乡。   

9.确立风格   

“牛皮糖”们喜欢同化你的风格,让你处在一个“邯郸学步"的尴尬境地。别让他们得逞。相反,你要根据自己的长处,确立你自己的风格并坚持下去。   

10.控制情绪   

“牛皮糖”们喜欢看到他们的对手变得烦燥,失误增多。他们把你拖长时间的对打当中,等待你的失误出现,看到你扔拍子、发脾气的样子他们会窃喜不已。一句话,他们希望在精神上和体能上拖垮对手。你不良情绪的出现会成为他们继续“磨” 下去的最好理由。所以,即使你在落后的局面下,也要学会控制情绪,把注意力集中在比赛中,打出你自己的风格和水平。

攻守平衡

每种运动都要求在比赛中保持高昂的斗志和强烈的取胜欲望。不过,如果始终都积极进攻的话,比赛也不会很顺利,因为网球运动是需要防守的。就连排名世界一流的桑普拉斯、阿加西和格拉芙等人,也只有在决胜负时才持续猛烈进攻。当自己处于劣势时,不要勉强进 攻,而应当咬紧牙关防守。能看清什么时候应该防守并不是一件简单的事。保持攻守平衡对于网球运动是非常重要的。  

比如,当自己被逼到浅位置的球场外接球时,通常需要用慢速的削球把球打回对角区,重新调整身体的平衡,这就是必要的防守。  

当比赛形势对我方有利时,应抓紧时机猛烈攻击,而不是过多地考虑防守。不过有时也会因为一味地进攻而看不出比赛整体的进展。

最好记住总体攻防平衡的标准是攻7守3。当积累了一定的比赛经验后,就会明白保持攻守平衡这件事的重要性了。