Jamaica's Olympic sprinter Grace Jackson

GraceJackson

AsafaPowell

Former World 100 meters sprint record holder at 9.74 seconds - Asafa Powell.(April 2008)

AsafaPowell

Usain Bolt: Fastest man over 100 meters. 9.72 seconds (May 2008)
Bejing Olympics: 9.69 over 100M; 19.32 over 200M. Still the fastest human alive.

UsainBolt