In other events, Gretchen Walsh became the first American woman to ever win gold at the world championships in the 50m butterfly. Regan Smith and Claire Curzan took silver and bronze, respectively, in the women's 200m backstroke. Jack Alexy's bronze in the men's 50 freestyle was his third medal of the 2025 world championships.

Canadian swimming phenom Summer McIntosh was unable to beat American star Katie Ledecky in the women's 800-metre freestyle at the world championships on Saturday, ending her quest to win five individual gold medals in Singapore.

Canada's Summer McIntosh took the bronze medal in the 800-metre freestyle at the world swim championship in a three-way duel to the finish.

Summer McIntosh, the 18-year-old Canadian swimming star, rolled to victory Sunday in the women’s 400-meter individual medley, setting a world-championship record and winning her fourth individual gold medal of the event.

Canadian sensation Summer McIntosh fell just short in her quest to match Michael Phelps's feat of winning five individual gold medals at a single world championships but that has given her the motivation to improve even more.

Kate Douglass wins the 200 breaststroke for the U.S.; Netherlands, China, Hungary and Britain also claim victories heading into a captivating final two days.

The United States, which had a frustrating swim world championships, ended on a high note Sunday with a world record in the women’s 4x100 medley in the last event of the eight-day championships.

The United States set the world record in the 4x100 freestyle mixed relay, clocking 3 minutes, 18.48 seconds in the swim world championships

Katie Ledecky won her seventh world title in the 800 meter freestyle on Saturday, Aug. 2 at swimming's world championships, just edging surprise Lani Pallister in a thrilling race while Ledecky's top rival Summer McIntosh finished third.