What is the standard of table tennis?

I don't know which standard you want, but I found a grading standard: desktop1.1. The upper surface of the table is called the game table, which should be a rectangle parallel to the horizontal plane, with a length of 274m, a width of 1.525m and a height of 76cm50761.1.3. The game table can be made of any material and should have consistent elasticity, that is, when the standard ball moves from the standard ball. The rebound 1. 1.4 table should be dark and dull, with a white edge line with a width of 2cm along the edge of each 2.74m competition interface and a white end line with a width of 2cm along the edge of each1.525m competition table. 1. 1.5 The playing table is divided into two equal table areas by a vertical net parallel to the end line, and the whole area of each table area should be a whole. In 1. 1.6 doubles, each table area should be divided into two equal "half areas" with a white middle line with a width of 3 mm. The midline is parallel to the sideline and should be regarded as a part of the right half. 1.2 net device 1.2. 1 net device includes a net, a net hanging rope, a net post and a clip part for fixing them on the table. 1.2.2 The net should be hung on a rope, and both ends of the rope should be tied to an upright net post with a height of15.25cm.. 1.2.3 the distance from the top of the whole network to the competition platform15.25cm. 1.2.4 The bottom of the whole net should be as close as possible to the competition table, and both ends should be as close as possible to the net posts. 1.3 ball 0 top 1.3. 1 ball should be spherical with a diameter of 38 mm. 1.3.2 ball weighs 2.5g.1.3.3 ball should be celluloid or similar material, white, yellow or orange, dull. 1.4 racket top 1.4. 1 the size, shape and weight of the racket are not limited, but the bottom plate should be flat and hard. 1.4.2 The thickness of the bottom plate shall be at least 85% of that of natural wood, and the adhesive layer for reinforcing the bottom plate may be made of fiber materials such as carbon fiber, glass fiber or compressed paper, and each adhesive layer shall not exceed the total thickness of the bottom plate. 1.4.3 The racket face used for hitting the ball should be covered with a layer of ordinary granular glue with outward particles, and the thickness of the glue should not exceed 2mm or sponge glue with inward or outward particles, and the thickness together with the adhesive should not exceed 4 mm. 1.4.3. 1 "Ordinary granular glue" is a layer of foam-free natural rubber or synthetic rubber, and its particles must be distributed throughout. 1.4.3.2 "Sponge rubber" means that a layer of foam rubber is covered with a layer of ordinary granular rubber, and the thickness of ordinary granular rubber is less than 2mm. 1.4.4 The covering should cover the whole racket face, but not beyond its edge. The portion near the handle and the finger grip portion may not be covered, or may be covered with any material. 1.4.5 The bottom plate, any interlayer, covering layer and adhesive layer in the bottom plate shall be a whole with uniform thickness. 1.4.6 Both sides of the racket, whether covered or not, must be dull, one bright red and the other black. The edge of the racket should be blunt, not white. 1.4.7 Due to accidental damage, wear or fading, the integrity and color consistency of the racket face are slightly different. It can be used as long as the racket face performance has not changed significantly. 1.4.8 When an athlete needs to change his racket at the beginning and during the competition, he must show his opponent and the referee the racket he will use and allow them to check it. 1.5 defines the term top 1.5. 1 "round": a period of time when the ball is in the game state. 1.5.2 "The state of the game when the ball is served". From the time of serving, the ball stands still for a moment without clapping its hands before intentionally throwing it upward. Score or serve again in this round. 1.5.3 "serve again": there is no score in the round. 1.5.4 "one point": this round scores. 1.5.5 "Clap your hands": the hand holding the racket. 1.5.6 "Don't be afraid of the hand": the hand that doesn't hold the racket. 1.5.7 "Hit the ball" refers to touching the ball with the racket or the lower part of the wrist holding the racket. 1.5.8 "Blocking": After the opponent hits the ball, the ball in the game state does not touch the table or exceeds the table or its end line, that is, it touches the player or anything he wears. 1.5.9 "server": the first player to hit the ball in a round. 1.5. 10 "receiver: the player who hits the ball second in a round. 1.5.165438+.1.5.12 "referee assistant": a person designated to assist the referee in some aspects. 1.5. 13 Anything an athlete "wears or brings", including anything he wears or brings at the beginning of a round. 1.5. 14 The ball that passes under or outside the net outside the protruding table, or returns after passing through the net, shall be regarded as having "passed or bypassed" the net. The "terminal line" in table 1.5. 15 includes infinite extension lines at both ends of the terminal line. 1.6 legal serve top 1.6. 1 When serving, put the ball on the palm of your hand. Don't clap your hands. Keep your palms open and flat. The ball should be static, behind the server's end line and above the game level. 1.6.2 The starter must throw the ball almost vertically upward by hand, and must not make the ball rotate, so that the ball will rise not less than 16 cm after leaving the palm of his hand without clapping his hands. 1.6.3 When the ball falls from the highest throwing point, the server can hit the ball so that the ball touches its own court first, then goes over or bypasses the net, and then touches the court of the receiver. In doubles, the ball should touch the right half of the server and receiver. 1.6.4 From the last moment when the ball is still before pitching to hitting the ball, the ball and racket should be above the level of the table. 1.6.5 When hitting the ball, the ball should be behind the end line of the server, but it should not exceed the farthest part of the server's body from the end line (except the arm, head or leg). 1.6.6 When an athlete serves, it is his responsibility to let the referee or assistant referee see if he serves according to the statutory provisions. 1.6.6. 1 If the referee doubts the correctness of a serve of the server, and neither he nor the assistant referee is sure that the serve is illegal, then this phenomenon appears for the first time in a game, and the referee can warn the server not to score points. 1.6.6.2 In the same game, if the correctness of a player's service is questioned again, he will lose a point without warning, whether for the same reason or not. 1.6.6.3 No matter whether it is the first time or at any time, as long as the server obviously fails to serve according to the legal provisions, he will lose one point. 1.6.7 When an athlete can't strictly abide by some provisions of the statutory service due to physical injury, the referee may make a decision to waive the execution, but he must explain it to the referee before the game. 1.7 Legally Counterattack top 1.7. 1 After the opponent serves or counterattacks, the player of the team must hit the ball so that the ball directly crosses or bypasses the net, or touches the net, and then touches the opponent's table. 1.8 Match Order top 1.8. 1 In singles, legal serve, the starter, then the receiver and the receiver legally counterattacked, and then they alternately legally counterattacked. 1.8.2 In doubles, legal serve, the server, then the receiver and the server legally counterattacked, and then the server and the receiver legally counterattacked. After that, players will take turns to fight back legally in this order. 1.9 Heavy serve top 1.9. 1 Round shall be judged as heavy serve: 1.9. 1 If the ball sent by the server touches the net device when it crosses or bypasses the net device, it will become a legal serve or be blocked by the receiver or his companions. 1.9. 1.2 If the receiver or companion is not ready, the ball has already served: and neither the receiver nor the companion tries to hit the ball. 1.9. 1.3 The athletes failed to go to legal serve due to uncontrollable interference. Fight back legally or obey the rules. 1.9. 1.4 The referee or deputy referee suspended the game. 1.9. 1.5 In doubles, the player made a mistake in serving and receiving the service. 1.9.2 The game can be suspended under the following circumstances: 1.9.2. 1 It needs to be corrected because of the wrong order or orientation of serving and receiving; 1.9.2.2 Due to the rotating service mode; 1.9.2.3 to warn or punish athletes; 1.9.2.4 The results of this round may be affected by the interference of the competition environment. 1. 10 one point: top1.1o1except for this round of heavy service, one point will be scored for each of the following situations:1.10./kloc-0. 1. 1O. 1.2 The opposing athlete failed to fight back legally; 1. 1O. 1.3 After the player serves or returns the ball, the ball touches anything except the net before the opponent hits the ball; 1. 10. 1.4 After the opponent hits the ball, the ball crosses his own end line and does not touch his own platform; 1. 10. 1.5 was blocked by the other party; 1. 10. 1.6 combo; 1. 10. 1.7 The opponent hits the ball with a racket face that does not meet the requirements of 1.4.3; 1. 10. 1.8 The opposing player or any player he wears moves the table; 1. 10. 1.9 The opposing player or anything he wears touches the net; 1.10.1.10 The opposing player does not clap his hands when touching the table; In1.10.1.1doubles, the opposing players hit the ball in the wrong order; 1.10.1.12 When the serve rotation method is implemented, the receiver or his doubles partner, including receiving the serve, completes 13 legal counterattacks. Before 1. 1 1 before a game 1. 1 in a game, the player who scores 2 1 points first wins, and after 20 draws, the player who scores 2 points first wins a game. However, during the game, any athlete should 1. 13 Choose to serve and face the top 1. 13. 1 Choose to serve, receive and play, and draw lots to decide who has the greatest power. The winner can choose to serve or receive first, or he can choose to play first. 1.65438+ The order of serving and receiving remains unchanged, but each player only serves one point in turn. 1. 13.4 In the first game of doubles, the first server determines the first receiver, and then the first receiver determines the first receiver. In subsequent matches, after the first receiver is determined, the first receiver should be the player who served for him in the previous match. 1. 13.5 In doubles, every time the service is changed, the receiver in front should be the server, and the companion of the receiver in front should be the first server in a game 1. 13.6, and the receiver will serve first in the next game. In the final game of doubles, when one player wins 10 first, the receiver will exchange the order of receiving the service. In the game of 1. 13.7, the player in one direction has to switch to the other direction in the next game. In the deciding game, one side wins 10. The two sides should exchange directions. 1. 14 The order and direction of serving and receiving are wrong. 1. 14. 1 The referee shall immediately suspend the game and serve or receive the service according to the order established at the beginning of the game and the score on the field. In doubles, when mistakes are found, they should be corrected in the order established by the side with the right to serve first, and the game will continue. 1. 14.2 once the referee finds that the players should exchange positions but not exchange positions, he should immediately suspend the game and make corrections according to the correct position where the players should stand at the beginning of the game before continuing the game. 1. 14.3 In any case, all scores before the error is found are valid. 1. 15 rotation serve method top 1. 15. 1 If a game is not over after 15 minutes (except when both sides score at least 19 points), or here, When the time limit is 1. 15. 1, the ball is still in the game state, and the referee shall immediately suspend the game. The suspended server serves and continues the game. 1. 15. 1.2 At that time, the ball was not in the game state, and the last round of service and service should be served to continue the game. After 1. 15.2, each player serves one point in turn until the end of the game. If the receiver makes 13 legal counterattacks, the receiver gets 1 point. Once the service change method of 1. 15.3 is implemented, the rest of the game must continue to be executed until the end of the game. The order of team events is the same for top male and female team events. That is, each team can register 3-5 people and play 3 people. One game is best of five, and one game is best of three. Before the start of a game, the captains of both sides draw lots to decide which side is A, B, C or X, Y and Z, and then the captains of both sides hand over the rankings of their respective athletes to the referee. The specific competition order is: 1, A versus X 2, B versus Y 3, C versus Z 4, A versus Y 5, B versus X. Top-level competition arrangement Section 1 Competition events and team events Competition order Table tennis competition * * * There are seven events including men's team, women's team, men's singles, women's doubles and mixed doubles. Second, the team competition (1) The men's team competition consists of three players and a captain (who can be part-time or full-time by other personnel) selected from a team. Before the game, the captains of both sides should draw lots to decide the choice of A, B, C and X, Y and Z, and submit a team list to the referee, and each player should be assigned a letter. The current competition order: the first A-X; The second game b-y; Game 3, C-Z, Game 4, A-Y, Game 5, B-X X X, each game is the best of three games. When a team wins three individual games, the game should be a draw. (II) Women's Team Competition According to the spirit of the resolution adopted by ITTF Congress held during the 43rd World Table Tennis Championships and approved by ITTF, the way of women's team competition adopted in men's competition, that is, the third doubles of the original women's team competition was changed to singles. The competition order of this year's women's team competition is: the first A-X; The second game b-y; The third game is C-Z; The fourth a-y, the fifth B-X X. Methods of Table Tennis Competition In the second quarter, there are two common methods of table tennis competition: single round robin and knockout. If these two methods are combined, it is called a hybrid system. The choice of competition mode depends on the competition purpose, venue, number of teams (people) and other conditions. One, a single round robin is called a single round robin. This method can make the participating teams or athletes have the opportunity to participate in the competition, and can determine the names of the teams or athletes more accurately. However, the number of single round robin is large, the competition time is long, and more venues and equipment are needed, so the number of teams or people participating in single round robin should not be too large, otherwise group round robin should be adopted. (1) Calculation method of single round robin ranking: According to the international competition rules, 2 points will be scored for winning a game, 1 point will be scored for losing a game, and 0 point will be scored for the games that have not been played or have not been finished. The ranking of the group will be determined according to the number of games won. If two or more teams in a group have the same score, they should be ranked according to the results of their corresponding games. First, the game scores obtained between them will be calculated, and then the number of individual games will be calculated as needed. (2) Although the group round robin can correctly arrange the ranking of teams (or people), it is difficult to use because of the large number of teams (or people), which brings difficulties to the organization and management of the competition. In this case, group round robin can be used. The most commonly used arrangement method of group round robin is "snake arrangement", that is, the sequence numbers are arranged according to the strength of each team (usually according to the ranking of the last game). The smaller the serial number, the stronger the strength, on the contrary, the weaker the strength. When grouping, the strength of each group is required to be average, that is, the serial numbers of each group are added. On the basis of "snake arrangement", some ball games divide seed teams and non-seed teams into groups by lottery, that is, No.65438 +0-4 team (seed team) is fixed in No.65438 +0-4 group or enters No.65438 +0-4 group by lottery; Then the numbers 5- 8, 9- 12, 13- 16 are drawn into the 1-4 group respectively. However, after the end of the grouping period, the second stage of the competition should be added and all the rankings should be discharged. There are two common methods: 1. For example, in the first stage, each group is divided into four groups for group round robin, and in the second stage, the first place in each group is a group for single round robin, and1-4 is decided; The second place in each group is a group, and the fifth to eighth places are decided; And so on. 2. In the first stage, the cross race is divided into two groups for round robin. In the second stage, the top two players in each group will compete to decide the number of places such as champion, runner-up and runner-up. In this way, the 5th-8th places are decided by 3 or 4 people in each group. 5 or 6 people in each group cross to decide No.9-12; According to this push. Second, the teams (or people) participating in the single elimination tournament will compete in the arranged order. The winner will enter the next round of competition, and the loser will be eliminated until the champion is decided, which is called the single elimination tournament. The number of single elimination matches is relatively small, which is conducive to arranging more players to participate in the competition in a short time. However, this method is unreasonable, incomplete and opportunistic, and some measures must be taken to overcome these defects in order to play its role in practical application. (1) The number of digits selected should be a power of 2. The commonly used numbers and positions in the competition are 8, 16, 32, 64, 128, 256. (2) detour If the number of participants is not equal to the number of times, but less than the number of times, that is, when the number of participants in the first round is less than the number of times, no athlete's ranking is called "bye" ranking. (3) When the number of participants is slightly greater than the power of 2, the square of 2 with the closest number of participants is selected as the number of numbers, and a few participants "grab the number". Grab the number is to play a game at the same number position first, and the winner enters the number. The position of grabbing the number is the same as that of bye-bye, and "grabbing the number" is also a round. (4) Seed (that is, strong players or excellent players) 1, the role of setting "seed" is to overcome the irrationality of single elimination. When drawing lots, the "seeds" are evenly distributed in each "area" so as to meet at last, and strive to ensure the rationality of determining the ranking of the competition. 2. The number of seeds The number of "seeds" is mainly determined according to the number of teams or participants. Generally, a seed is set for1/6- 12 of the number of participants, that is, 6-12 players on average; At the same time, the number of "seeds" should be a power of 2, such as 2, 4, 8, 16, etc. 3. The position of "seeds" should be arranged as follows: the first seed is arranged at the top of the upper half; The second seed should be arranged at the bottom of the lower half; The third and fourth seeds should be inserted at the bottom of the upper half and the top of the lower half respectively; The fifth to eighth seeds should enter the bottom of odd quarters and the top of even quarters respectively; If there are many seeds (9- 16), and so on (the seed position number can be found in the seed position table). In fact, the "seeds" of the knockout stage are evenly distributed in various "zones".