100 meter sprint is the shortest distance race in the Olympic track and field events, also known as "the race to challenge the speed limit of human beings". By the end of 2009, the world record of men's 100 meter sprint was 9.58 seconds set by Bolt at the 2009 Berlin Athletics Championships. Bolt is the fastest runner in the world.
In the past, athletes usually competed in 100 yards (9 1 m) instead of 100 m, especially in the United States. This shorter distance has been abandoned. Because few indoor facilities have a straight line distance of 100 meters, indoor projects are generally 60 meters (sometimes 50 meters or 55 meters).
The outdoor 400-meter runway, 100 meters, is carried out on the end straight, and the starting point is set on the extension line, in order to make it a straight line. In order to gain a competitive advantage, some people use illegal drugs. For example, in the scandal of 1988 Summer Olympic Games, champion ben johnson was disqualified from medal.
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In international competitions, all track events of 400 meters and below must adopt squat starting and use starting devices. After hearing the passwords of "take your positions" and "gather", the players should immediately complete the relevant actions. Any player who fails to complete the relevant actions within a reasonable time is considered as the first foul (FS).
In addition, after "in place", disturbing others with voice or action may be sentenced to the first foul. Any starting action before the gunfire rang is also a first foul. From 20 10, athletes will be disqualified immediately if they steal a run once (this situation does not apply to men's decathlon and women's heptathlon).
Determination of sprint ranking: the athletes will be determined by drawing lots in the track preliminaries, and the preliminary results will generally be used in the finals. During the competition, the athletes go on their own tracks, and they are not allowed to cross the track after the start, otherwise the results will be invalid. At the start, an athlete who steals a run once will be disqualified immediately.