He participated at 3 Olympic Games and was a member of the Great Britain team for 16 years.
He is acknowledged within the sport for pushing the boundaries of what's possible. His invention of "the world's most difficult dive" - backward 2.5 somersaults with 2.5 twists in the piked position (also known as the rather understated 5255b) is a legacy that will live long after his competitive days are over.
Training in the pre-lottery funding era in a minority sport brought its challenges but recovering from two separate shoulder surgeries, Leon won a silver medal at the 2002 Commonwealth Games in Manchester and then in the Athens Olympics of 2004, he fulfilled a life-time ambition with his diving partner Peter Waterfield, when they secured Britain's first medal in the sport for 44 years and the first silver medal in 84 years. This honour led to additional investment in the sport and the development of a new crop of British talent. The pair, who first dived together 14 years ago, followed this up the following year at the 2005 World Championships with a bronze medal.
Since then Leon has faced his hardest competition against a succession of injuries. His role of honour is matched in length by a catalogue of injuries that finally forced the 30-year-old into retirement less than three months out from realising another Olympic dream in Beijing. The disappointment of being unable to travel to Beijing as an athlete was tempered somewhat by being signed up by the BBC for their coverage of the 2008 Games. Leon commentated on the diving events and was a reporter and pundit for the general Olympic coverage. Following Beijing, Leon is continuing his support of British diving through his role as 'Athlete mentor' and is throwing himself back into the corporate speaking circuit.
Leon is part of Team B & Q, partner of the British Olympic Association. He is also one of the judges in ITV's 'Splash'