 Representing Great Britain at the 1996 Summer Olympics in Atlanta, he qualified for both the 100-metre and 200-metre backstroke.Martin Harris earned silver medal in the 100m backstroke at the 1993 FINA world short course championships in Palma and another bronze medal with the British team in the 4x100-metre medley relay at the 1997 FINA short course world championships.Martin won a silver medal as a member of the English team in the 4x100-metre medley relay, and 4th in the 100m backstroke at the 1998 Commonwealth Games in Kuala Lumpur, Malaysia.