The U.S. men claimed one gold medal over the eight-day meet (Luca Urlando, 200m butterfly), their fewest at a world championships. For the second time, the U.S. won none of the three men's relays (2001).

Summer McIntosh won her fourth gold medal of the World Aquatics Championships in Singapore with a dominant performance in the 400-meter individual medley.

Summer McIntosh, the 18-year-old Canadian swimming star, rolled to victory Sunday in the women’s 400-meter individual medley, setting a world-championship record and winning her fourth individual gold medal of the event.