Derek Redmond and His Father, Barcelona 1992

Britain's Derek Redmond, bib 749, hobbles down the track in the 400 meters semifinal in Barcelona on August 3, 1992, after tearing his hamstring on the back straight, as his father Jim, in a white T-shirt and cap, comes onto the track behind him. Jim got past security, waved officials away and helped his son to the finish line with the stadium on its feet. Redmond is recorded as did not finish, and the race became one of the most replayed moments in Olympic history without a medal anywhere near it.