In other events, Gretchen Walsh became the first American woman to win gold at the world championships in the 50m butterfly.

Australian Kaylee McKeown and American Regan Smith went one-two in the 200m backstroke, just as they did in all three ...

Katie Ledecky has dominated the women's 800-meter freestyle for more than a decade, winning gold in the event in four ...

American Katie Ledecky continued domination of the women's 800 meters freestyle with a brilliant swim to win gold.

Canadian swimming phenom Summer McIntosh was unable to beat American star Katie Ledecky in the women's 800-metre freestyle at ...

American star Katie Ledecky won her seventh world title in the women’s 800-meter freestyle on Saturday, fending off the ...

Ledecky held off Lani Pallister and Summer McIntosh in a tight race Saturday to win gold and extend her reign in the ...

The American great sealed her 23rd world title and seventh gold in Singapore, edging out Lani Pallister and Summer McIntosh ...

Summer McIntosh's goal at the world championships was 5 gold in 5 races, but it was not to be for the 18-year-old phenom.

In one of the most highly anticipated races of the season, Summer McIntosh beat Katie Ledecky to claim the 400 free gold in ...

Canada's Summer McIntosh and American Katie Ledecky will square off in the women's 400 and 800-metre freestyle events at the ...

Ledecky, the most decorated female swimmer ever, and McIntosh, an 18-year-old Canadian quickly rising up the all-time ranks, ...