Badminton competition rules Article 9 "serve" detailing what is the legal service, it is clear what the "service offences", in the judgement of whether or not "serve at the illegal", we must first master "serve time" concept, because all the Players "serve offenders" only "serve time" Lane.
Serving time: When the players and players of both sides to do a good job in serving and receiving and serving prepared, the players shoot the first racket of the first wave forward (service began), until the players hit the ball or hit the racket ball The ball landed (the end of service) until a period of time. Following is how to judge "serve offenders."
1. Feet offenders serve
Throughout the service time, of any of the players stepped lines, mobile lines or are inconsistent with offenders. When the players prepared to begin serving a good position at the station, serving the referee should pay attention to any of the players kicked it has stamping on the line, touch line, if any, at this time can not be pronounced because the service did not begin, once the players Racket began waving forward, referees do not have to wait until the service runs on the ball should immediately declared "illegal." Some of the players like to serve at stations close to the center line, at the beginning of Huipai feet did not touch at the line, but with the Huipai action Houjiao a rotation which is obviously half a foot pedal on-line, which is "illegal serve feet." Some of the players used to stand in good position, Qianjiao after Huipai step forward, this should not be seen as a foot movement, did not serve as the beginning, but once the players started the racket forward to serving the end of wave In this period, any of the players have kicked off the ground or drag is "illegal serve feet."
2. Entrusted not to hit the ball
Serve the ball with the racket when the initial point of contact is not entrusted the ball on the ball, that is, the ball hit the racket to the feathers or parts of the feathers at the same time the ball hit the ball and did not care for all legal, this rule is the primary role Restrictions on the rotation of players floating ball. Serve, to serve the attention of the referee carefully watched, rackets and the ball is only the initial point of contact on the ball care, in fact sometimes it is very difficult, therefore, serve to help the referee sent the ball to watch the flight to help determine If the racket is obviously to hit the feathers, the contractor should be no doubt serve illegal if not from observation not very sure whether the ball hit the first care, it depends on if given the ball in flight with a rotation, the roller can be Sentenced offenders, if a normal curve ball flight is a legitimate service. However, attention should be paid, if the service is obvious when asked to hit the ball, then sent the ball flying with the rotation and the roller, it can not be sentenced offenders.
3. Serve the lumbar
Serve, when the racket hitting the ball the moment, the ball higher than any part of the players back to "serve the waist." This is not allowed under the rules of the major players in the high-bats, hit the ball the past, resulting in the docking serve the threat. In determining whether any part of the ball over waist, we must first know the waist position, from the anatomy of the human body, the waist is the first to the fifth lumbar spinal component, the first lumbar roughly equivalent to a minimum of human ribs, when hit The moment the ball, the ball is higher than the minimum if any part of an extensive line of a rib, should be considered as the waist of the (past there had been in the badminton competitions at the request of the athletes under the T-shirt along, into the Ku Yao, and then to the Kuyao Service sector to determine whether the waist, with the result that the athletes deliberately Kuyao beam, to increase the shortcomings of batting points). "Serve the waist" Offenders must be hit in the racket will have its moment, here are two cases worth noting: One is the players have started Huipai, and the ball has left the players on the strength of players, And when the ball much higher than that of the players in the air waist, which are not illegal; another is that the players prepared to serve and Huipai the beginning stage, the ball of the players remain below the waist, and when about to hit Ball, the players on to the ball quickly, in the sphere over waist height to hit the ball, and this is an obvious offenders serve the waist.
4. Guoshou serve
Serve, when the racket hitting the ball the moment, the racket of the players did not shoot par at the bottom, making the whole ball patted head of the players obviously lower than the clap of the hands of (customary "serve Guoshou"). This is not allowed under the rules of the main players with the vertical with the ground-shoot of the issue of offensive-shooting, and the requirements of the racket face can only player to hit a upward direction, so that the upward curve the ball to cross the ball Net. Judgement when it is necessary to have this offence three aspects: First, the racket hitting the ball the moment the second is the racket must be significantly lower than the players hand; Third, if sent to the flight of the ball curve is flat To the players, then-serve "Guoshou illegal" no mistake, this is most important.
5. Delays in service
The players Huipai not a one-time forward for the ball hit (used to "serve false moves"). The players at the beginning and then forward Huipai Huipai change direction, or in the process of Huipai a halt to the other side of deception, these offences are serving. In practice more, see the situation move forward Huipai First, the players suddenly stopped halfway, then the players that are near the center of gravity forward and tennis, but the players suddenly wrist Yidou the ball to each other after the Field, then the players cheated. There is a player ready to serve in, the racket will keep jitter, a very small margin, on the other side when the ball by not issuing. These should be sentenced for the "delay in serving the" illegal.
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