Rules of the game:
(1) The order of athletes' trial jump is determined by drawing lots.
(2) Before the start of the competition, the referee should announce the take-off height and crossbar raising plan to the athletes, which will last until only the last winner or the first place is tied.
(3) Before there is only one athlete left, the height of the crossbar shall not be less than 2 cm at a time. In the all-around competition, the height of each round is 3 cm.
(4) Athletes must take off on one foot.
The high jump venue includes three parts: run-up path, take-off area and landing area:
Run-up Path The length of run-up path in high jump shall not be shorter than 15m. The run-up lane of high jump in large-scale track and field competitions shall not be shorter than 20m, and it shall not be shorter than 25m if conditions permit. The inclination of the approach road and take-off area to the center of the crossbar shall not exceed 1: 250. ?
Run-up marks in field events using run-up lanes, the marks should be placed along the run-up lanes, and the marks of high jump run-up can be placed on the run-up lanes.
Each athlete can put 1 to 2 markers approved or provided by the organizing Committee to help run-up and take-off. If such a mark is not provided, athletes can use adhesive tape, but they can't use chalk or any similar substance that is difficult to erase traces. If the ground is wet, you can fix the tape on the ground with several thumbtacks of different colors. ?