Summer McIntosh, the 18-year-old Canadian swimming star, rolled to victory Sunday in the women’s 400-meter individual medley, ...

Léon Marchand has broken one world record already in the 200-meter individual medley. He’ll try for a second on Sunday in the ...

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 ...

McIntosh blitzed the field in the 400 IM with a time of 4:25.78, the world record holder coming home more than seven seconds ...

Canadian swimming phenom Summer McIntosh was unable to beat American star Katie Ledecky in the women's 800-metre freestyle at ...

Summer McIntosh led from start to finish to win her fourth gold at the Singapore world championships on Sunday with a ...

Canadian star Summer McIntosh completed arguably the greatest world championships ever by a female swimmer, capturing her ...

On the final day of competition, McIntosh added a final gold medal to her collection in the 400m individual medley, swimming ...

Leon Marchand and Summer McIntosh sealed their golden swimming world championships with rampant victories on Sunday's final ...

Summer McIntosh of Toronto logged a time of 4:35.56 and moves on to Sunday's 400-metre medley finals at the World Aquatics ...

Canada's Summer McIntosh wrapped up one of the best World Championships performances ever with her fourth individual gold.