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

The Americans set a world relay record and piled up three gold medals Saturday in what's been an otherwise frustrating ...

A 12-year-old Chinese swimmer has become a global sensation with her history-making times, even as observers and fans back ...

Chinese 12-year-old Yu Zidi has the No. 3 qualifying time as she shoots for a medal. She picked up a bronze medal in a relay ...

The U.S. women have overcome struggles with illness to win medals in every event, with Regan Smith and Katie Ledecky leading ...

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

Cal alum Jack Alexy won a gold medal and helped the U.S. set a world record in the mixed 4x100-meter freestyle relay Saturday at the World Aquatics Championship ...

Rowdy Gaines, a three-time Olympic gold medalist, minces few words when he broadcasts swimming for the American network NBC.