Usain Bolt has won the 100m race at the London Olympics. He beat his clsest rival -Blake, a fellow Jamaican who took the silver medal.
Jamaican Bolt ran the distance comfortably in 9.63 seconds and his Jaimaican compatriot completed the race in 9.75 seconds. American Justin Gatlin finished third with 9.79 seconds.
Bolt has now won four Olympic gold medals, following his 100, 200m and 4x100m relay success at the 2008 Beijing Games.