At the 2025 World Aquatics Championships in Singapore, French swimmer Léon Marchand set a new world record in the 200-meter individual medley during the semifinals with a time of 1 minute 52.69 seconds. This performance broke the previous record of 1 minute 54.00 seconds held by American Ryan Lochte since 2011. Marchand went on to win the gold medal in the final with a time of 1 minute 53.68 seconds, securing his third world title in this event and his sixth individual world championship title overall. In addition, French swimmer Maxime Grousset won the gold medal in the 100-meter butterfly, defending his 2023 world title, and also contributed to a bronze medal in the mixed 4x100 meter relay alongside teammates Yann Le Goff, Marie Wattel, and Béryl Gastaldello. American swimmer Katie Ledecky won the 800-meter freestyle, defeating competitor McIntosh in a closely contested race. Australian Kaylee McKeown claimed her third gold medal in the 200-meter backstroke. These results highlight strong performances by French swimmers at the championships, with Marchand and Grousset notably achieving multiple titles.