History was made on the track Tuesday morning in the men's 400 meters hurdles final.
Norway's Karsten Warholm took gold, setting a world record of 45.94 and breaking the 46-second mark for the first time.
American silver medalist Rai Benjamin pushed Warholm all the way, clocking in at 46.17 — easily inside the previous world record of 46.70, set by the Norwegian on July 1. Before that, the 400 meters hurdles world record hadn't been broken since 1992.
According to NBC, three of the four fastest times ever in the event were run in the Tokyo final.