Katie Ledecky, who won Saturday’s 800m free, is the only other female swimmer to claim four individual golds at a worlds ...

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

The 18-year-old Olympic champion finished with a time of 4:25.78 to set a new championship record in the women's 400m ...

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

Canada’s Summer McIntosh capped a dominant world swimming championships with her fourth gold medal on Sunday, winning the ...

Summer McIntosh won gold in the 400-metre individual medley at the World Aquatic Championships on Sunday morning.