A Tennis contest is played between two or four athletes. An umpire, aided by nine line umpires presides over the contest. Before the beginning of the contest, the umpire flips a coin. The winning athlete or pair has the following options: choose its side of the court, choose to serve first, choose to receive first or give the choice to the opponent.
In the beginning of a “game” the athlete serves from the right side of court and for each successive serve he/she alternates sides. In the next “game” the right to serve goes to the opponent athlete. The aim in Tennis is to hit the ball with one’s racket so that it crosses over the net and lands on the opponent’s court. An athlete or pair scores a point when:
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The ball hits the opponent’s court and bounces twice
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The ball hits the opponent’s body
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The opponent hits the ball and it bounces outside the court
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The opponent does not manage to hit the ball over the net
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The opponent’s body or racket touch the net while the ball is still in play
Winner is the player or pair to win three “sets” in the men’s events (best-of-five set match) and two in the women’s events (best-of-three set match). To win a “set” an athlete or pair must win six “games”.
Each “game” consists of four points. The first one is called 15, the second 30, the third 40. The fourth is simply the “game” ball: the athlete or pair wins the “game”, provided that there is a two-point difference. In case of a 40-40 tie (deuce), the athlete or pair must win two subsequent points (advantage, “game”).
Similar rules apply to a “set”. For an athlete or pair to win a “set” they must be ahead by two “games” from the opponent. In case of a 6-6 “game” tie, there is a “tie break”: the athlete to serve first serves one “point” and then the athletes serve alternatively every two points, switching court sides every six points.
The athlete or pair to score at least seven points while being in the lead by two points wins the “set”. A “tie break” can be played in all “sets” except for a contest’s last set at which an “advantage set” is played instead: winner is the athlete or team to win two subsequent “games”.
