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

SINGAPORE — Canada's Summer McIntosh took the bronze medal in the 800-metre freestyle at the world swim championship in a three-way duel to the finish.

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 free. Pallister wasn't far behind (8:05.98), with McIntosh claiming bronze (8:07.29).