Usain Bolt runs 100m into a headwind to qualify for the Semi-Finals in Daegu. World record holder Usain Bolt cantered to a win in his 100m heat at the World Athletics Championships in Daegu. The Jamaican eased up with 30m to go but still beat Dwain Chambers comfortably in a time of seconds. Chambers was second and will be joined in the next round by team-mates Harry Aikines-Aryeetey and Marlon Devonish.
Hide player controls
Hide resume playing