TOKYO (REUTERS) - A world record had been predicted but Norway’s Karsten Warholm did not just break it, he destroyed it to hold off American Rai Benjamin and win a superb men’s Olympic 400 metres hurdles final on Tuesday (Aug 3).

In July, Warholm broke Kevin Young’s 29-year world mark with a time of 46.70 seconds but he blew his own record away with an astonishing 45.94sec run.