What should I do if two people 100 meters are not clear?

Accurate measurement, referee's judgment, play-offs and lottery can solve the problem of not knowing who is faster.

When two people's 100-meter scores are very close and it is impossible to clearly judge who is faster, accurate measurement can be adopted. Use more accurate timing equipment, such as electronic timer or video camera, to shoot the game, and then calculate the time accurately through slow-motion playback. This can eliminate human error and get more accurate results. You can rely on the referee's observation and judgment to decide the outcome. If there are more than one referee in the competition, they can make a relatively accurate judgment by observing the details of the competition, such as body posture, stride frequency and stride length. The referee's experience and professional knowledge can help them make a fair decision. Consider arranging a play-off to decide the outcome. Play-offs can be events that test the overall ability of two people, such as sprint, long-distance running and long jump. By playing overtime, we can evaluate the strength of two people more comprehensively, so as to determine who is faster. If there are no clear rules to decide this situation in the competition, lottery can be used. By drawing lots to determine the ranking, we can avoid the intervention of subjective factors and make the results more fair and random.