The Jamaican dramatically false-started in the final in Daegu two years ago, leading to a disqualification, and there were gasps around the arena when the recall gun went again, but this time Bolt was not the guilty party.
After seeing Kemar Hyman of the Cayman Islands leave the track, the world record holder got his customary slow start before pulling clear and easing down to win in 10.07 seconds.
Asked if he was worried by the false start, Bolt told BBC One: “No. I saw him, he moved, he moved. I could see him move so I knew it was him so no I didn’t.”