― Usain Bolt has won the men's 100m final at London 2012 in an Olympic record time of 9.63 seconds. ∙ The Jamaican world record holder, 25, powered to victory ahead of compatriot Yohan Blake and American bronze medallist Justin Gatlin. ∙ Bolt did not start well but surged away from Blake and Gatlin from the halfway stage to run the second-fastest time in history. ∙ American Tyson Gay finished fourth at the Olympic Stadium. ∙ Jamaican Asafa Powell pulled up during [...].