In this handout photo from the Seiko Press Service Usain Bolt of Jamaica crosses the line to win the gold medal in the men's 100 Metres Final during day two of the 12th IAAF World Athletics Championships at the Olympic Stadium on August 16, 2009 in Berlin, Germany. Bolt set a new World Record of 9.58. ( - Photo by Getty Images/Getty Images Europe)
The Contenders
100 meters in less than 10 seconds... a lot less than 10 seconds. Here're the athletes with enough muscle and grit to compete for the title "World's Fastest Man".
