EXTRACTS FROM THE
2.4 THE RACKET
2.4.1 The racket may be of any size, shape or weight but the blade shall be flat and rigid.
2.4.2 At least 85% of the blade by thickness shall be of natural wood; an adhesive layer within the blade may be reinforced with fibrous material such as carbon fibre, glass fibre or compressed paper, but shall not be thicker than 7.5% of the total thickness or 0.35mm, whichever is the smaller.
2.4.3 A side of the blade used for striking the ball shall be covered with either ordinary pimpled rubber with pimples outward having a total thickness including adhesive of not more than 2.0mm, or sandwich rubber with pimples inward or outwards having a total thickness including adhesive of not more than 4.0mm.
184.108.40.206 Ordinary pimpled rubber is a single layer of non-cellular rubber, natural or synthetic, with pimples evenly distributed over its surface at a density of not less than 10 per sq cm and not more than 30 per sq cm.
220.127.116.11 Sandwich rubber is a single layer of cellular rubber covered with a single outer layer of ordinary pimpled rubber, the thickness of the pimpled rubber not being more than 2mm.
2.4.4 The covering material shall extend up to but not beyond the limits of the blade, except that the part nearest the handle and gripped by the fingers may be left uncovered or covered with any material.
2.4.5 The blade, any layer within the blade and any layer of covering material or adhesive on a side used for striking the ball shall be continuous and of even thickness.
2.4.6 The surface of the covering material on a side of the blade, or of a side of the blade if it is left uncovered, shall be matt, bright red on one side and black on the other.
2.4.7 The racket covering shall be used without any chemical, physical or other treatment.
18.104.22.168 Slight deviations from continuity of surface or uniformity of colour due to accidental damage or wear may be allowed provided that they do not significantly change the characteristics of the surface.
2.4.8 At the start of a match and whenever he changes his racket during a match a player shall show his opponent and the umpire the racket he is about to use and shall allow them to examine it.
2.4.9 The racket covering shall be of a brand and type currently authorised by the ITTF.
2.4.10 A racket shall not be changed during an individual match unless it is accidently damaged so badly that it cannot be used.
2.6 THE SERVICE
2.6.1 Service shall start with the ball resting freely on the open palm of the server’s stationary free hand.
2.6.2 The server shall then project the ball near vertically upwards without imparting spin, so that it rises at least 16cm after leaving the palm of the free hand and then falls without touching anything before being struck.
2.6.3 As the ball is falling the server shall strike it so that it touches, first his court and then, after passing over or around the net assembly, touches directly the receiver’s court; in doubles, the ball shall touch successively the right half court of server and receiver.
2.6.4 From the start of service until it is struck, the ball shall be above the level of the playing surface and behind the server’s end line, and it shall not be hidden from the receiver by the server or his doubles partner or by anything they wear or carry.
2.6.5 As soon as the ball has been projected, the server’s free arm and hand shall be removed from the space between the ball and the net.
2.6.6 It is the responsibility of the player to serve so that the umpire or the assistant umpire can be satisfied that he complies with the requirements of the Law and either may decide that a service is illegal.
22.214.171.124 If either the umpire or the assistant umpire is not sure about the legality of a service he may, on the first occasion in a match, interrupt play and warn the server, but any subsequent service by that player or his doubles partner which is not clearly legal shall be considered incorrect.
2.6.7 Exceptionally, the umpire may relax the requirements for a good service where he is satisfied that compliance is prevented by physical disability.
2.9 A LET
2.9.1 The rally shall be a let
126.96.36.199 if in service the ball, in passing over or around the net assembly, touches it, provided the service is otherwise correct or the ball is obstructed by the receiver or his partner;
188.8.131.52 if the service is delivered when the receiving player or pair is not ready, provided that neither the receiver nor his partner attempts to strike the ball;
2.10 A POINT
2.10.1 Unless the rally is a let, a player shall score a point.
184.108.40.206 if his opponent, or anything his opponent wears or carries, moves the playing surface;
220.127.116.11 if his opponent, or anything his opponent wears or carries, touches the net assembly;
18.104.22.168 if his opponents free hand touches the playing surface;
22.214.171.124 if a doubles opponent strikes the ball out of the sequence established by the first server and first receiver;
2.13 THE ORDER OF SERVING, RECEIVING AND ENDS
2.13.1 The right to choose the initial order of serving, receiving and ends shall be decided by lot and the winner may choose to serve or to receive first or to start at a particular end.
2.13.2 When one player or pair has chosen to serve or to receive serve first or to start at a particular end, the other player or pair shall have the other choice.
2.15 THE EXPEDITE SYSTEM
2.15.1 Except as provided in 2.15.2, the expedite system shall come into operation after 10 minutes’ play in a game or at any time when requested by both players or pairs.
2.15.2 The expedite system shall not be introduced in a game if at least 18 points have been scored.
2.15.3 If the ball is in play when the time limit is reached and the expedite system is due to come into operation, play shall be interrupted by the umpire and shall resume with service by the player who served in the rally that was interrupted; if the ball is not in play when the expedite system comes into operation, play shall resume with service by the player who received in the immediately preceding rally.
2.15.4 Thereafter, each player shall serve for 1 point in turn until the end of the game, and if the receiving player or pair makes 13 returns in a rally the receiver shall score a point.
2.15.5 Introduction of the expedite system shall not alter the order of serving and receiving in the match, as defined in 2.13.6.
2.15.6 Once introduced, the expedite system shall remain in operation until the end of the match.
ITTF REGULATIONS ADOPTED BY WEMBLEY AND HARROW LEAGUE
3.2.4 Racket Control
126.96.36.199 It is the responsibility of each player to ensure that the racket coverings are attached to their racket blade with adhesives that do not contain harmful volatile solvents.
188.8.131.52 Unless otherwise authorised by the umpire, players shall leave their rackets on the table during intervals.
184.108.40.206 Play shall be continuous throughout an individual match except that any player is entitled to
220.127.116.11.1 an interval of up to 1 minute between successive games of an individual match;
18.104.22.168.2 brief intervals for towelling after every 6 points from the start of each game and at the change of ends in the last possible game of an individual match.
22.214.171.124 A player or pair may claim one time-out period of up to 1 minute during an individual match.
MANAGEMENT COMMITTEE RECOMMENDATION
The main colour of clothing worn during the League or Cup matches and Championships, other than socks or shoes, shall be clearly different from that of the ball in use.