Hometown: Wallington, Surrey
Event: Wheelchair racing - sprint, middle and long distances
Games: Atlanta 1996, Athens 2004, Beijing 2008, London 2012, Rio 2016
David Weir is one of Britain's most successful wheelchair athletes. He was born without the use of his legs and began competing in wheelchair athletics as a youngster, representing Sutton in the London Youth Games. David also won the junior wheelchair race event in the London Marathon seven times.
At Atlanta in 1996, he competed in his first Paralympic Games at the age of 17, but then took a break from sport. David returned at the 2004 Games in Athens, where he won Silver in the T54 100m and Bronze in the T54 200m.
In Beijing in 2008, David won four medals: Golds in the T54 800m and the T54 1500m, Silver in the T54 400m and Bronze in the T54 5000m (he did not compete in the marathon).
David is also a regular competitor in the London Marathon, which he won for a record-equalling sixth time in April 2012, matching the achievement of Tanni Grey-Thompson.
At London 2012, David won Gold in all his events: T54 800m, 1500m, 5000m and the Marathon. Nicknamed 'The Weirwolf', he won the Marathon with a spectacular sprint finish along The Mall. Cheered on by a huge crowd, he came home in one hour 30 minutes and 20 seconds to beat Marcel Hug of Switzerland into second place by one second, with defending champion Kurt Fearnley of Australia taking bronze, also one second behind David.
To achieve his four Gold medals at London 2012, David had to compete in a gruelling seven races in ten days. His Gold medal for the Marathon was the last Gold to be won by Great Britain at the London 2012 Paralympic Games. With Sarah Storey, David had the honour of leading the Paralympic athletes into the stadium for the Closing Ceremony.
David has two children: a daughter, Ronnie and a son, Mason.