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yesterday

McIntosh Dominates 400 Free as Maertens and Australia Relay Teams Triumph on Opening Day

Her dominant performance inaugurates a chase for five individual golds in a meet challenged by illness within the U.S. squad.

China's Yu Zidi reacts after finishing the women's 200 meters freestyle semifinal at the 2025 National Swimming Championships in Shenzhen, in China's southern Guangdong province on May 19, 2025. (Photo by AFP) / China OUT (Photo by -/AFP via Getty Images)
Yu Zidi prepares to compete in the 200m individual medley heats in Singapore on Sunday. Photo: AP
Swimming - World Aquatics Championships - Women's 400m Freestyle Final - World Aquatics Championships Arena, Singapore - July 27, 2025 Australia's Lani Pallister and Katie Ledecky of the U.S. in action REUTERS/Marko Djurica
Artistic Swimming - World Aquatics Championships - Team Technical - World Aquatics Championships Arena, Singapore - July 21, 2025 Team United States performs during preliminaries REUTERS/Marko Djurica/File Photo

Overview

  • Summer McIntosh claimed the women’s 400m freestyle in 3:56.26 to kick off her pursuit of five individual titles, finishing nearly two seconds ahead of silver medalist Li Bingjie and bronze’s Katie Ledecky.
  • Germany’s Lukas Maertens edged Australia’s Sam Short by 0.02 seconds in a photo finish to win the men’s 400m freestyle.
  • Australia swept the 4×100m freestyle relays, with the men’s team setting a championship record of 3:08.97.
  • Twelve-year-old Yu Zidi secured a spot in Monday’s 200m individual medley final after narrowly advancing from the semifinals.
  • USA Swimming disclosed that several team members fell ill with acute gastroenteritis at a pre-meet camp, leading to lineup changes on opening day.