Karsten Warholm and Alison dos Santos rivalry takes on a unique twist at Shanghai/Keqiao Diamond League

Norwegian 400m hurdles world champion Karsten Warholm and Brazilian rival Alison dos Santos will face off at the Shanghai/Keqiao Diamond League on Saturday, 16 May 2025, in a rare 300 metres hurdles event marking the season opener for elite outdoor athletics. The two Olympic medallists and world champions will compete across the non-standard distance, where race strategy is expected to play a crucial role. The Shanghai meeting is the first of two consecutive head-to-head clashes, with the pair set to race again the following week in Xiamen.