Usain Bolt stormed to victory in the 100 metres final to become the first man to win three successive Olympic titles on the track His 9.81-second time fell short of his record 9.58 set seven years ago, yet Bolt still blitzed by the competition in a personal season best “It was brilliant,” Bolt said. “I didn’t go so fast but I’m so happy I won. I told you guys I was going to do it.”