2. Before the start of the competition, the referee should announce the take-off height and the plan of each round. This plan will continue until there are only/kloc-0 athletes left in the competition or the results are equal. ?

Before there are only 1 athletes left or the results are equal, the elevation of the crossbar between rounds shall not be less than 2 cm. In all-around jumping high school, the height of the crossbar should be 3 cm from beginning to end. ? After the start of the competition, athletes are not allowed to use the run-up lane or take-off area for practice. ?

Athletes must take off with one foot. ?

4. When one of the following circumstances occurs, the trial jump fails. ?

(1) Try to jump off the bar. ? (2) Before crossing the crossbar, any part of the body touches the ground between the pillars, out of the vertical plane of the extension line of the crossbar or in the falling area. ?

Note: In the trial jump, if an athlete touches the area with one foot, the referee thinks he has not benefited from it. It should not be judged as a failure to try to jump. ?

5. During the competition, athletes can start to take off at any height above the specified take-off height, and they can also decide whether to "jump" at any height in the future. At any altitude, if you fail three times in a row, you will be disqualified from continuing the competition. ? At one altitude, after the first or second attempt fails, you can request "no jump", but the number of attempts at the next altitude can only be in? The number of times left after the previous high altitude test jump failed. ? If "jump-free" is required at a certain height, it is not allowed to resume the trial jump at that height. ? When the first place is equal, you can't avoid jumping. ?

6. Every athlete should take his best jump test score, including the first jump test score equal to the final ranking, as his final winning score. ?

7. Every time after raising the crossbar, measure the height. When creating new achievements, the height must be verified by the pole. ? When measuring height, the wooden ruler should be perpendicular to the ground, and the height should be calculated from the lowest point of the ground to the upper edge of the crossbar. Take one centimeter as the minimum unit of measurement, and those less than one centimeter are not counted. ?

8. When placing the crossbar, the referee should do:? (1) at least 1cm gap exists between the ends of the crossbar and the column. ? (2) All sides of the crossbar should always face its original direction. ?

9. Other athletes failed at the last height. When there is only one athlete left, the height of the crossbar must be determined after consulting the athlete until the athlete fails or gives up at the final height. ? Note: This regulation does not apply to all-around sports. ?

10. During the competition, you are not allowed to move or jump on the elevated bridge. If the referee thinks that the take-off area or landing area is no longer suitable for the competition, can he wait until all the athletes have tried to jump for one round?

1 1. High jumpers can put the signs provided by the Association on the run-up lane, or put handkerchiefs or similar items on the crossbar as targets.

According to the "high jump" of IAAF competition rules 17 1, the ranking of high jump competition is arranged according to each athlete's best performance. If the athletes' best scores are equal, they should be ranked according to the following provisions: first, they appear when the scores are equal, and those who try less times rank first; Second, if the results continue to be the same, those who try to jump less times will rank first; Third, if the results are still the same, when the first place is involved, a competition will be held to determine the ranking, and the rest will be tied.