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

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

SINGAPORE -- It's Katie Ledecky against Summer McIntosh in the final of the 800-meter freestyle, probably the most anticipated race at the swimming world championships in Singapore.

Katie Ledecky of the United States celebrates after winning gold medal in the women’s 1500m freestyle final at the World Aquatics Championships in Singapore on Tuesday.

SINGAPORE (AP) — Katie Ledecky has ceded a tiny bit of ground in other events, but she's still unbeatable in the 1,500-meter freestyle.

K atie Ledecky cruised to a dominant 1,500m freestyle gold in Singapore on Tuesday to claim the 22nd world title of her storied career. The American great touched the wall in 15min 26.44sec, ahead of ...

Katie Ledecky has owned the 800m freestyle for more than a decade, but Summer McIntosh is coming for her crown at the world championships.

In one of the most consequential non-Olympic races in years, all-time swimming great Katie Ledecky could face an unprecedented challenge Saturday from Canadian teen Summer McIntosh.

Pakistan, Aug. 2 -- Summer McIntosh and Katie Ledecky set up a showdown for the ages at swimming's world championships in Singapore when both stars cruised into the 800m freestyle final on Friday.

SINGAPORE (AP) — The gold medals were spread around on Friday at the swimming world championships, thanks to the absence of stars Léon Marchand of France and Canadian Summer McIntosh from any ...

Summer McIntosh came within a whisker of breaking a long-standing world record and Leon Marchand failed to improve on a new mark he set just a night earlier, but both young guns won gold medals at ...