Adam Peaty breaks own breaststroke world record

Adam Peaty has not been beaten for five years over 100 metres breaststroke in major competition and he never looked in any danger in the second men's semifinal on day one in Gwangju.

Adam Peaty celebrates after breaking the world record.   -  GETTY IMAGES

Great Britain's Adam Peaty broke his own world record in the 100m breaststroke semifinals, becoming the first man to push through the 57-second barrier as he clocked 56.88secs.

"Obviously I've been chasing that for years now," said Peaty.

“Ever since I touched that wall in Rio, I knew I could go faster,” he added.

“It always comes down to where and when you do it and what kind of season you've had.”

“(In the final) hopefully we can go a little faster. It's still the semifinal. It'd be embarrassing not to come away with the world title but you know I don't think like that.”

Peaty has not been beaten for five years over 100 metres breaststroke in major competition and he never looked in any danger in the second men's semifinal on day one in Gwangju.

Peaty punched the air after the roar of the crowd told him he had finally broken the magical 57-second barrier.

“I said I wasn't going to chase 56,” he said. “I'd let it come to me and that's exactly what we've done.

“I've learnt that the most important asset is my mental health. If I'm chasing 56, it's unhealthy.”

With inputs from AFP