Watch: Bailey Matthews crosses finish line of his 50th park runpublished at 13:55 British Summer Time 19 April 2016
Amy Nagy
BBC Radio Sheffield
Nine-year-old Bailey Matthews from Doncaster has cerebral palsy.
You might remember seeing him complete a triathlon last year - and he later won the Helen Rollason award at the BBC's Sports Personality of the Year Awards.
Well, here he is finishing his 50th parkrun at Clumber Park this weekend. Bravo Bailey!