Usain Bolt retirement

Bolt has no regrets about retirement decision

Bolt will hang up his spikes following the world championships in London in August, bringing the curtain down on a career that has delivered eight Olympic gold medals.

Bolt who has been name world sportsman of the year at the international Laureus Sports awards in Monaco says he's done everything he wanted to do in the sport.

Bolt won’t carry on to Gold Coast Commonwealth Games

Bolt’s retirement event is the world championships later this year in London, but there had been hopes he might have made the Games next April his swan song.

The Jamaican eight-time Olympic champion has ruled out that idea.

“To come out here next season, to really train as hard as I need to get to the level I need to win, it’s not going to happen,” he said.

Bolt was in Melbourne as the No.1 athlete competing at the inaugural Nitro athletics series from Saturday.