sain Bolt runs 10.10s 100m into a 0.7ms headwind to qualify for the Semi-Finals in Daegu.br br World record holder Usain Bolt cantered to a win in his 100m heat at the World Athletics Championships in Daegu.br br The Jamaican eased up with 30m to go but still beat Dwain Chambers comfortably in a time of 10.10 seconds.br br Chambers was second and will be joined in the next round by team-mates Harry Aikines-Aryeetey and Marlon Devonish.