Katie Ledecky remains unbeaten in the 800 freestyle, while the Americans set a world relay record and piled up three gold ...

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

Australian Cameron McEvoy and Brit Ben Proud went one-two in the men's 50m free, repeating their finishes from the Olympics.

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

Ledecky won with a time of 8:05.62, both a world championships record and the fourth fastest time in the history of the 800m ...

Katie Ledecky won her seventh consecutive world title at the world championships in Singapore, on Saturday, Aug. 2, in the ...

The United States set the world record in the 4x100 mixed relay on Saturday, clocking 3 minutes, 18.48 seconds in the swim ...

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

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

Katie Ledecky has dominated the women's 800m freestyle for over a decade, but Canadian Summer McIntosh is on her tail, ...

In the first of two anticipated showdowns at world championships, the Canadian phenom McIntosh was dominant against the ...

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