William Martin OAM is just 21, but he has already won three Paralympic Gold Medals, a Paralympic Silver Medal and a medal for the Order of Australia.

But the young swimmer is just getting started. He spoke exclusively to Edge of the Crowd after the weekend's Duel in the Pool, where he won four races and finished second in two others.

"I'm happy to be here - we got the job done, didn't quite get the win," Martin said.