 However, this didn't hinder superstar Jamaican triple Olympic champion Usain Bolt in the 100 m on 16 August winning gold by smashing his previous world record of 9.69 by 0.11 seconds and running an astonishing 9.58 seconds beating American Tyson Gay by two metres despite Gay running a national record of 9.71.Fellow Jamaican former world record holder Asafa Powell won bronze in a season's best of 9.84.Bolt broke the 100 m world record by the biggest margin ever in the modern era and became the first human to go under 9.6 seconds.