The 100m is generally considered the most prestigious event in athletics. Winners of the men's and women's races become famous around the globe. The Rio 2016 gold medal winners will join a list that includes greats like Jesse Owens, Carl Lewis, Usain Bolt, Gail Devers, Florence Griffith Joyner and Shelly-Ann Fraser-Pryce.

IAAF: 100 Metres

Runners race for 100m down the home straight of a 400m track. They start from blocks and run in lanes. A reaction time - measured by sensors in the starting pistol and on the blocks - of less than 0.1 is deemed a false start and runners will be recalled, and the responsible athlete disqualified. Find lists of the current world's best sprinters.

100 metres - Wikipedia

The 100 metres, or 100-meter dash, is a sprint race in track and field competitions. The shortest common outdoor running distance, it is one of the most popular events in the sport of athletics. It has been contested at the Summer Olympics since 1896 for men and since 1928 for women.

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