Dos Santos Breaks World Record in Men's 400m Hurdles at Zurich Diamond League

Brazil’s Alison dos Santos shattered the men's 400m hurdles world record at the Zurich Diamond League, clocking 45.80 seconds to beat Karsten Warholm’s 45.94 from Tokyo 2020. He erased his previous PB of 46.29 and had been undefeated this season. Warholm finished a distant second in 46.69 as dos Santos surged clear over the final 100 metres. The performance set new Diamond League and Zurich meeting records, marking a historic milestone as the first sub-46 world mark in the event. The win extends dos Santos’ rise and intensifies the rivalry with Warholm. The meet also featured notable highlights in other events, underscoring a high-caliber athletics program that day.