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Action team
According to the direction of athletes standing before take-off and the direction of body movement after take-off, diving movements are divided into the following six groups:
Group 1- dive forward facing the pool.
The second group-dive backward (near) facing the board.
The third group-reverse diving facing the pool.
The fourth group-diving inward facing the springboard (platform).
Group 5-twist diving.
Team 6-arm diving (platform diving only).
Air action posture
Diving air posture can be divided into four types: straight body (represented by "A"), bent body (represented by "B"), tuck (represented by "C") and arbitrary somersault posture (represented by "D").
Diving action code
Each diving group has its own number to represent the action group and the number of somersaults.
1 ~ 4 groups of action numbers all use 3 digits. The first number represents the action group; The second number represents the flying action (if the second number is "0", it means there is flying action in service) 8 The third number represents the number of somersaults ("1" is half a week, "2" is a week, "3" is a week and a half, and so on). For example, "20 1" is the second group of movements: diving backwards and flipping half a circle; "305" refers to the third group of movements: two and a half somersaults; "1 13" means to fly forward and somersault for one and a half times.
The fifth group uses 4 digits to indicate the steering action. The first digit indicates the fifth group (especially the twist diving); The second digit indicates the rolling direction; The third digit indicates the number of somersaults; The fourth digit indicates the number of turns, and the calculation method is the same as before. For example, in the action of "5 136", "5" means the fifth group of twist diving, "1" means the somersault is completed in the front diving direction of 1 group, "3" means the somersault is one and a half times, and "6" means the somersault is three times. Another example is the "5337" movement, which refers to the fifth group of turning movements. The third group of reflexive diving directions is used to complete somersaults and turns for one and a half weeks and three and a half weeks.
The sixth group of arm-standing movements also use three fingers. The first digit indicates the sixth group (especially arm diving); The second digit indicates the direction of arm diving; The third digit indicates the number of somersaults (calculation method is the same as above). For example, in the action of "6 14", "6" means that the sixth group dives vertically, "1" means that the first group rolls forward in the diving direction, and "4" means that it rolls for two weeks. Another example is "632", which refers to the arm-standing diving action of the sixth group, and somersaults in the reverse diving direction.
Action difficulty coefficient
The movement difficulty coefficient indicates the difficulty for athletes to complete the movement. The rules of international diving competition determine the corresponding difficulty coefficient for each diving action, which is determined according to the difference of action group, competition events (springboard, platform), instrument height, action posture and the number of somersaults and turns. When diving, athletes have simple movements and low difficulty coefficient; When the action is complex, the difficulty coefficient is high. For example: 3m board 1O3 B, difficulty coefficient 1.6. 10m platform 307 C, with difficulty coefficient of 3.4. For the same action, the difficulty coefficient is different because of the different height of the instrument. For example, the difficulty coefficient of 1 meter board is 3.0, and the difficulty coefficient of 3 meter board is 2.7. At present, the highest difficulty listed in the difficulty table of international diving competition rules is; The difficulty coefficients of 3m board 109C and 307C, 10M platform 109C are all 3.5.
The referee scores according to the following criteria:
Failure 0 points
Bad 0.5 ~ 2 points.
Ordinary 2.5-4.5 points
Better 5 ~ 6 points
It's good. 6.5 to 8 points
The best score is 8 ~ 10.
In the competition, the referee scores according to the athletes' approach (that is, walking board and running platform), take-off, air action and water entry action. Therefore, athletes should run smoothly in the competition, take off decisively and forcefully, and take off at an appropriate angle with a certain height; Beautiful posture in the air, rolling and turning quickly; When people swim, their bodies are perpendicular to the water, and the smaller the splash, the better.
Scoring by five referees: After scoring by five referees, the highest and lowest invalid points are deleted first, and the sum of the scores of the remaining three referees is multiplied by the difficulty coefficient of the action jumped by the athletes to get the real score of the action. For example, the scores of five judges are 5, (5.5), 5, 5, (4.5) = 15 (sum) X 2.0 (difficulty) =30 (actual score). (Note: Figures in brackets are invalid points deleted. The same below)
Scoring by 7 referees: The method is the same as that of 5 referees, but the score calculated by 7 referees should be divided by 5 and multiplied by 3. For example, the scores of seven referees are 5, (5.5), 5, 5, (4.5)=25 (sum) x 2.0 (difficulty) = 50+5x3 = 30 (actual score).
After the competition, the athletes' total score is the sum of the actual results of each jump. The winner is the one with the highest total score. If two or more people have the same total score, the ranking is the same. In the competition with all-around events, the total score of athletes' springboard movements and platform movements together is the total score of all-around events.