James Clegg comes from a sporty family with world champion sprinter and elder sister Libby a world and Paralympic medal winner in athletics.
He burst on to the world scene at in 2012, breaking Ian Sharpe's 12-year old British S12 record in 100m Butterfly at the British Gas Swimming Championships in London.
Competing on his Paralympic debut at London 2012 later in the season, Clegg became the first British S12 swimmer to go under a minute for the 100m Butterfly as he won his heat then landed bronze in the final. He also reached the final of the S12 100m Freestyle in London, securing eighth place.
After winning MC 100m Butterfly gold at the 2013 British International Disability Championships, Clegg went on to represent Great Britain at the IPC World Swimming Championships in Montreal, winning another international medal with bronze in the S12 400m Freestyle.
While he missed out on the British squad for the 2014 IPC Europeans in Eindhoven, Clegg responded in style at the ASA National Championships, winning the MC 50m Freestyle and MC 100m Butterfly titles in the same session and lowering his British records in both events.