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There are many basic rules of tennis.
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Diagonal alignment, i.e. no ball on the same side. The tee is located outside the service line. If the serving side sends the serve to the appropriate area without touching the net, if the tennis ball does not touch the net and there is a chance to serve again, both serves are out of bounds as a double error and loses one point.
If the serve touches the net for the first time, it can be re-served twice, and the second time it touches the net is not a double fault but can be re-served.
An ace is a serve in which one of the two sides of the game serves, and the ball lands in the effective area, but the opponent does not touch the ball to make it score directly. If the opponent touches the ball and goes out of bounds or into the net, it is only called a service score, not an ace. (The ace ball can show the player's service speed and cut angle very well).
Format: Men's singles is usually a best-of-five tournament such as an ATP event, and a women's singles is a best-of-three tournament such as a WTA event.
Scoring method: The smallest unit in tennis is the score, followed by the round, then the handicap.
1 set: 1 set is won by a team that wins 6 games and wins 2 games (e.g. 6:4, 6:3...).When both teams win 5 games, a win of 2 games is a win of 1 set (e.g. 7:5).
One game: In each game, a player needs to win 4 goals to win the game. The scores of the four balls are counted as , a.
If there is a 40:40 draw, the arbitrary player needs to win two goals in a row to win the game. If a goal is won and then equalised, the score will be recounted as 40:
40 flat. In the tiebreaker, when the score is 6:6, there are two scoring systems.
1) Long set system: one side wins two games to win 1 set (8:6, 9:7...).2) Short Handicap System (Tie-break): The first player to score 7 points wins the game and the set (if the score is 6 usual, one side must net 2 points).
1) Both teams shall switch venues at the end of the odd-numbered games of each set and when the sum of the numbers of the games of both teams at the end of each set is an odd number.
2) In a tie-break match, the scores of both sides are added and the field is changed every 6 points.
Live Ball: In tennis, a ball is played from the moment it is sent out (live ball). Unless there is a service error or the serve is invalid, the ball remains on play until it is scored.
The score is not decided by a player failing to pick up a ball in bounds, or when a ball is clearly out of bounds. A ball that goes out of bounds but is still in the air remains a live ball unless it does hit the ground, a backcourt sign, or fixture (other than a net, a post, a singles post, a rope, a center belt, or a white cloth on the edge of the net) or a player. The same principle applies to a ball that lands once in touch and then bounces off.
A ball stuck in the net is a dead ball.
If the ball hits the net and the other player thinks the ball has hit the net and hits the ball and hits the net, he loses points if the ball is alive when he touches the net.
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Tennis players should stand on both sides of the net, and the player who serves first is called the serving player. The choice of venue and when the player serves is determined by the coin toss, and the winning side chooses first
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The server should stand in the area behind the end line, between the midpoint and the putative extension of the sideline, toss the ball in any direction in the air with his hand before serving, and hits the ball with his racket before it touches the ground. When the racket touches the ball, the serve is completed.
The server shall not change the position of the original station by walking or running during the entire service action; Feet are only allowed to stand in the designated position and are not allowed to touch other areas.
At the beginning of each game, serve from the end line of the right zone, and after scoring or losing a point, you should switch to the left zone to serve. The ball should be sent over the net and into the opposing opponent's teeing area, or within the perimeter line.
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