Jamaica's Usain Bolt celebrates winning the men's 200m final race of the 2009 IAAF Athletics World Championships on August 20, 2009 in Berlin. Jamaican Usain Bolt set a new world record of 19.19sec in winning the 200m. (Adrian Dennis/AFP/Getty Images)
He set the previous world record of 19.30 at last year's Beijing Olympics.
Bolt has become the only man ever to hold the 100 and 200 Olympic and world titles as well as the world records at the same time.
Panama's Alonso Edward was second and American Wallace Spearmon third.
