Katie Ledecky's sustained brilliance and a late gold-rush by her female teammates added gloss to an underwhelming campaign ...

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

Ledecky, trailing McIntosh at the 700-meter mark, surged ahead on the final lap, fending off a hard-charging Pallister as ...

Katie Ledecky remains a dominant force in competitive swimming. The Olympic swimmer, 28, won her seventh consecutive world ...

Katie Ledecky and her female teammates led Team USA to success at the swimming world championships in Singapore, despite challenges including a gastroenteritis outbreak. While the women excelled, ...

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

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

Katie Ledecky has ceded a tiny bit of ground in other events, but she’s still unbeatable in the 1,500-meter freestyle.

Katie Ledecky's sustained brilliance and a late gold-rush by her female teammates added gloss to an underwhelming campaign ...

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