Tennis match
A tennis match is intended to be continuous. Stamina is a relevant factor, so arbitrary delays are not permitted. In most cases, service is required to occur no more than 20 seconds after the end of the previous point. This is increased to 90 seconds when the players change ends (every two games), and a 120 second break is permitted between sets. Other than this, breaks are permitted only when forced by events beyond the players’ control, such as rain, damaged footwear, or the need to chase an errant ball.
Balls wear out quickly in serious play, and therefore are changed after every nine games. The first such change occurs after only seven games, because the first set of balls is also used for the pre-match warm-up. Continuity of the balls’ condition is considered part of the game, so if a re-warm-up is required after an extended break in play (usually due to rain) then the re-warm-up is done using a separate set of balls, and use of the match balls is resumed only when play resumes.
Wheelchair tennis can be played by able-bodied players as well as people who require a wheelchair for mobility. The use of legs or feet is then prohibited, and the player is required to remain seated in the wheelchair. There is an exception for those who are only able to propel themselves using a foot. In wheelchair tennis, in which the players move in wheelchairs instead of using legs, an extra bounce is permitted. This rule makes it possible to have mixed wheelchair and legs matches. It is possible for a doubles team to consist of a wheelchair user and a legs user, or for a wheelchair user to play against a legs user. In such cases, the extra bounce is permitted for the wheelchair users only.
Another, informal, tennis format is called “Canadian doubles” (also referred to as “American Doubles” in Australia, and “Australian Doubles” in Canada). This involves three players, with one person playing against a doubles team. For the single player, singles-court rules apply (such that the ball must be within the singles-court lines) but on the side of the doubles team, doubles-court rules apply (the alleys are considered in). The scoring is the same as a regular game. This format is not sanctioned by any official body and is only played when a fourth player is not available for normal doubles.
Lastly, there is a tennis formation called “Australian doubles” in which both players on the same team line up on the same side of the court, with one player at the net and one in the backcourt. The one in back will generally move to the vacant side of the court after the point begins, which forces the opposing player to hit the ball down the line. This formation also allows the player at the net to poach more easily.
This guide is licensed under the GNU Free Documentation License. It uses material from the Wikipedia.
