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

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

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

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

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

Katie Ledecky continued her dominance in the 800m freestyle event at the world championships on Saturday by winning her ...

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

The epic battle was one of the greatest races in history. In the end, the 28-year-old American captured her seventh world championship in the event.

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