Men: 46.78 seconds by Kevin Young of the United States at the 1992 Games in Barcelona. It is also the current (March, 2010) world record.
Women: 52.82 seconds by Deon Hemmings of Jamaica at the 1996 Games in Atlanta.
The world record is 1:53.28 set by Jarmila Kratochvílová in München on the 26 July 1983.
Men. Usain Bolt, 2008, 9.58 seconds for a 100 meter sprint.
The first recognized women's 100 meter dash world record was a 12.8 run by Mary LInes of Great Britain in 1922.
The womens 800 meter world record is 8:16.22 by Janet Evans (USA) Aug 20, 1989.
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The fastest man in the world is Usain Bolt. He set the world record for the 100 meter sprint. He ran up to 100 meters in 9.58 seconds.
10.49s by Florence Griffiths-Joyner in 1988.
Olympic Record: Usain Bolt 9.63 (2012)World Record: Usain Bolt 9.58 (2009)
The World Record is 5.56seconds held by Donovan Bailey of Canada. He ran this in 1996.
9.58 seconds, Usain Bolt 2009 World Championships.