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Tennis rules

Mayu Can Dream2010-02-16 22:11:13 +0000 #1
1. The basic rules of tennis. 2. How the tie-break. 3. If it is on behalf of the school play for each school to send eight people (one of which is substitute) that no one just to play a Board that is what the rules (including the tie-break) 4. The how to choose tennis and tennis rackets, tennis rackets how better. 5. If the race competitors will foul and injuring more than two do. Thank you for the next first啦- ^ o ^
Han Wu Yong2010-02-16 22:25:22 +0000 #2
1, the basic rules of tennis to see here:

baike.baidu.com/view/343214.html?wtp=tt

2, ibid.

3, refer to the above website "plate."

4, how to choose tennis rackets look here:

baike.baidu.com/view/1810097.htm

how to choose Tennis: general training, then the election of the Tenryu-made X-Ace or a Star of power. Suffice it as a beginner.

5, to see how you injured, if you fly in your site where shot and wounded opponent save, the referee will punish you by the rules. If you hit the ball back to each other, referees but will be sentenced to your score, this play can be disabled to fight opponents. If you dare to use a direct violation of each other's limbs, referees will take your punishment, and then call the police.
Deathly Hallows count xx2010-02-16 22:36:16 +0000 #3
ground rules

(1) tee

1. Serve before the provisions of the players off the tee should be preceded by

hair stand on end line, the midpoint and the edges of the assumption that the area between the extension, the hand will be toss the ball into the air in any direction, the ball touch the ground before the ball with the racket (for athletes with one hand only, available racket ball toss). Racket contact with the ball, even if the completion of sending the ball.

2. Serves the players when the provisions of

hair moves across the ball, no walking or running through the station to change the original position, standing on two feet only provides location, not touching other regions.

3. Fat position players

(1) Every Board start by right area end line after a goal, or is missing one point, it should be changed to serve the left area.

(2) the issue should be online over the ball, landed on the other front corner of the box area, or around online

4. Driving mistakes

does not hit the ball; the issuance of the ball, hit the floor before the fixed matter (the net, the center zone and network side, except white); violation of the provisions of tee stations. For the first time the players made mistakes in serving, it should be in primary position, a second serve.

5.

Serve touches the net after the ball is invalid, still serve the area fell on the other side, then the ball players are not ready to get prepared; should be re-serve.

6. Exchange bureaux serving

first game ended, then the players in becoming a player, serving as catcher. After the end of each round. Were followed by the exchange until the end of the game.

(B) of the General

1. The exchange of venue

the two sides should set the first of each odd-numbered 1,3,5, etc. Board concluded, and after the end of the two sides of each plate number of the Board and for the singular, the exchange site.

2. Lose points

any of the following conditions are sentenced to lose points.

(1) In the ball touch the ground before the second could not fight back over the net.

(2) hit back hit the ball the other market areas outside the boundaries of the ground, fixtures, or other objects.

(3) fight back air ball failure.

(4) The intentional use of racket ball more than once.

(5) The athlete's body, racket, the ball touches the net during the period.

(6) over the net shot.

(7) polishing film shot

3. Pressure contour line of the ball

ball landed considered fair ball.

(3) Doubles

1.'s Doubles serve the order of

the beginning of the first game of each set by the serving side has decided who to serve first, the other side is again at the beginning of the first two Board decided and by whom to serve first. No. 3 Bureau serving side by the first one bureau to another player serve. 4 Council Office by the first two players off the tee serve another master. The following rank order for the Council here to serve.

2.'s Doubles in the order of

first catch the ball side of a bureau should be the beginning of the first, to determine who the first return of serve, and in this dish odd Bureau, to continue to the first return of serve. The two sides should also be the beginning of the first two Board decided to whom the return of serve, and in this Council continues to set the number of pairs of the first return of serve. Their peers should be the return of serve in rotation for each bureau.

3.'s Doubles retaliate

return of serve, the parties shall alternately strike back by any one player. If players hit the ball in their dealings with team members, after them, and then racket ball, the penalty is the other scores.

(D) scoring

1. A Board

(a) each win a ball is worth 1 point, 4 points wins the first victory by a bureau.

(2) Both sides had each won a three time-sharing to "split", split after the victory margin of two is divided into a bureau.

2. 1

(1) a party to win the first six Board to win one.

(2) the parties have each won five bureaux, one party wins margin of two Board for a

3. Tiebreaker scoring system

in each disk Bureau is 6 usually has the following two kinds of scoring system.

(1) Long drive system: one side margin of two wins a Bureau.

(2) a short drive system (tie-break): deciding set, except, unless otherwise specified before the game in general should follow the following approach to the implementation.

A. served 7 pm the winner the council and the disk (if the score of 6 normal times, the party will have a net 2 points).

B. The first starter-fat, subsection 1, the ball, the other party made the first 2,3 minutes the ball, and then in turn made two-point shot until the end of the game.

C. 1-point shot made in the right area, the first two-point shot made in the left area, the first 3-point shot made in the right area.

D. Every six hours the end of the ball and gaming venues must be exchanged.

4. Short in the scoring system

(1) Section 1 ball (0-0), made the players made a sub-A ball, a ball-point shot after the change.

(2) Section 2,3 goals (reported 1:0 or 0:1, 15:0, or 12:15 and not reporting it), from B tee, B bursts of two hours after the change of service the ball, starting with the left area serve .

(3) Section 4,5 goals (reported 3:0 or 1:2,2:1, not reporting 40:0 or 15:30, 30:15), from A ball, A, after firing two goals for After serving for serving, start with the left area serve.

(4) Section 6,7 goals (reported 2:4,4:2 or 1:5,5:1 or 3:3 or 6:0,0: 6), made a point shot from the B after the exchange of venue If the game had not been completed, B continue to issue the first seven balls.

(5) scores hit 5:5,6:6,7:7,8:8 ... ... should be subject to consecutive two points can decide who pays the winner. However, in a unified scoring table is written as 7:6.

(6) Once on shore, after the deciding game, players change ends the Israeli side.

(5) Site Rules

1. Course

stadium should be the length of 78 feet (23.77 meters) wide and 27 feet (8.23 meters) of the rectangle. Hanging in the middle by a maximum diameter of 1 / 3 inch (0.8 centimeters) thick rope or wire rope on the net separately.

2.

The net ball net cord or thick rope maximum diameter of 1 / 3 inch (0.8 cm), net at both ends should be attached to or hung on the two net post top of the net post should be a side length of not more than 6 inches ( 15 cm) square square columns or diameter of 6 inches (15 cm) columns. Net post can not exceed the net ropes to the top 1 inch (2.5 cm). The mid-point of each survey grid columns should be 3 feet away from the venue (0.914 m), net column height should be made net cord or rope to the top of the vertical distance from the ground 3 feet 6 inches (1.07 meters). In single-hung double-doubles dual-use sites for singles play network game, the net should be 2 a height of 3 feet 6 inches (1.07 meters) of the "singles sting" support, the strut cross-section should be the side length of less than 3-inch (7.5 cm) square square columns or diameter less than 3 inches (7.5 cm) columns. The midpoint of each side's singles sting should be 3 feet away from the singles sideline (0.914 meters). The net need to be fully opened in order to be able to effectively fill the space between two pillars, and effectively open all mesh, mesh size of nets to prevent the ball from the ball through the middle. The midpoint of the height of the net should be 3 feet (0.914 meters), and used no more than 2 inches (5 cm) wide white belt is completely tightened down fixed. Internet side of the net cord ball or use a white rope belt wrapped live, the width of each side ranging from 2 inches (5 cm) to 2.5 inches (6.35 cm). In the net, mesh belt and singles can not have ads on the sting.

3. Course Line

pitch both ends of the line is called the bottom line, on both sides of the line is called sidelines. Net on both sides of the ball at a distance of 21 feet (6.4 meters) where the draw a line parallel with the net for the service line. The net with the ball on each side of the composition of lines and edges of the site no longer be serving the central line is divided into two equal areas, in order to service area, serving the central line is a service line connecting the mid-point and with two edges parallel to the line width to be to 2 inches (5 cm). The bottom line for every one had been a long 4-inch (10 cm) wide and 2 inches (5 cm) midline of the assumption that serve to extend the line is divided into two equal parts, separated by a short-term, the short-term as a "midpoint", which The bottom line was located at right angles and attached to the floor from the bottom-line painting. In addition to the maximum width of the bottom line can not exceed 4 inches (10 cm), all other lines the width should be 1 inch (2 centimeters) to 2 inches (5 cm) between the. All measurements should be based on the outer edge line shall prevail.

4. A permanent fixture

tennis courts and a permanent fixture not only include the net, net column, singles poles, net rope, wire rope, the center zone and mesh belt, the following situation is considered a permanent fixture, such as the golf course side of the four baffle, spectator stand, around the golf course fixed or movable chairs, as well as the audience, as well as all the top venues around and supporting facilities, as well as the location for their own scheduled referee, Division net referees, foot wrong referees, linesmen and ball child.

If your ad is located in the back of the Secretary-line golf course behind the chair, then the advertisement can not include white or yellow. Light only in the line of sight without interfering with the case of players allowed to use. (ITF Note 1: In the Davis Cup, Fed Cup and ITF-sponsored tournament, for the bottom line and sidelines on both sides of the back of the size of the specific requirements of the region were included in the relevant provisions of the tournament. ITF statement 2: For the club and amateur players, the bottom line from the back of the venue at least 18 feet (5.5 meters) away from the side edges of at least 10 feet (3.05 meters))

(6) Competition Equipment Rules

1. the ball

ball outside the court need for the unity of textile materials, packages, color is white or yellow, seams need to trace a seamless line. Need to be consistent with the size of the ball in Appendix 1 of article IV of the requirements (detection of the ball there are three in the rules specify), weight should be between 2 ounces (56.7 grams) and 2 further 1 / 6 ounces (58.5 grams) between the. From the 100-inch (254 cm) height to the concrete floor to free fall campaign, the rebound height should be between 53 inches (134.62 centimeters) and 58 inches (147.32 centimeters) between the. When the ball is applied to 18 pounds (8.165 kilograms) of pressure, the inward elastic deformation occurs should be between 0.22 inches (0.559 cm) and 0.29 inches (0.737 centimeters), with a rebound after compression deformation should range from 0.315 inches (0.8 cm) and 0.425 inches (1.08 cm) between the. These two kinds of deformation data should be based on the ball three-axis test to be average. In each case the difference between any two data can not be larger than 0.03 inches (0.076 cm).

If at an altitude of 4000 feet (1219 meters) high to compete, we need to adopt the other two special balls. The first is a high degree of inter jumping to between 48 inches (121.92 centimeters) and 53 inches (134.62 centimeters), the also to make the ball's internal pressure is greater than the external pressure, the other side is identical with the above description, this ball often referred to as pressurized ball; the second addition to bouncing the ball high to 53 inches (134.62 centimeters) and 58 inches (147.32 centimeters) between, but also to make the ball pressure is approximately equal to the external pressure, and can be the altitude specified venues to keep more than 60 days, the other side is identical with the above description, this ball is often referred to as zero-pressure ball or non-pressure the ball.

All about the ball bounce, size, and deformation of the test, need to comply with the provisions of Appendix 1.

International Tennis Federation will have any questions about whether a ball or samples meet the above criteria, or whether it can be approved for the issue of race ruling. Such a ruling may be to initiate acts of ITF itself may also be the basis of all really interested in, or including any player, equipment manufacturer or the national tennis association, and their members to carry out the application. Such decisions should be based on ITF application and the review and hearing processes.

2. Rackets

does not meet the following requirements of the racket are not allowed in accordance with the rules of the game to be used:

a. racket ball surface should be flat from the connection string the racket frame composed of uniform rules of the shoot, shoot string where the cross should be interwoven or combined with each other; film composed of strings should be broadly consistent with the sample, the central density can not be less than the other regions, particularly the density. The design and wear a racket strings should give the pros and cons on both sides of the racket at the ball when the nature of the general consistency.

Shot line that there should be an adjunct or highlight objects, unless the appendages and very clear that only used to limit and prevent the shot string wear and tear, tearing, or vibration, and its size and location must also be reasonable.

B. From January 1, 1997 onwards, the use of race in professional ball patted the total length of the box (including the Grip) can not be more than 27 inches (73.66 cm). From January 1, 2000 onwards, in non-professional game ball used in the total length of the pat box (including the Grip) can not be more than 27 inches (73.66 cm). Prior to this, the use of non-professional game racket to send the maximum length of 32 inches (81.28 centimeters). The total width of the film frame can not exceed 12 then 1 / 2 inches (31.75 centimeters). The total length of the plane wearing a string can not be more than 15 then 1 / 2 inches (39.37 centimeters), with a total width of not more than 11 then 1 / 2 inches (29.21 centimeters).

C. beat box, including the Grip can not have appendages and installations, unless the appendages and very clear that only used to limit and prevent the racket wear, cracking, vibration, or to adjust the weight distribution, and its Size and location must also be reasonable.

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