Karsten Warholm smashes his own World Record

Norway’s Karsten Warholm has smashed the world 400m hurdles record after shattering his own world record at Tokyo 2020.

Double world champion Warholm registered a time of 46.70 seconds in Oslo on July 1, but he has smashed that in the most important race of his career, recording a time of 45.94 in the final.

USA’s Rai Benjamin, 25, came in second with an area record time of 46.17 seconds to take silver.

Brazil’s Alison dos Santos won bronze in 46.72 seconds which would have won every past Olympic 400m hurdle final.