How many seconds does the 400-meter hurdle usually take?

The performance standard of the first-class athletes in men's 400-meter hurdles is-54 "14. According to the athletes' technical grade standards, the performance standards of men's 400-meter hurdles athletes at all levels are:

International athletes -50 "00.

Athletes -5 1 "50.

First-class athletes-54 "14.

Ranking of all contestants:

According to the order in which the trunk of the body reaches the end point and ends along the vertical plane, the one that arrives first ranks first. In any competition, if the athletes' scores are equal when they enter the next competition according to their scores, the referee of the terminal camera should consider the actual scores of the athletes concerned11000 seconds.

If the result is still the same, the athletes concerned should enter the next competition. If the actual conditions do not allow, we should draw lots to decide who will enter the next game. In the final, the first place has the same score, and the referee has the right to decide whether to play again. If there is an unconditional rematch, tie for first place. As for other rankings, the results are the same and will be processed in parallel.