In one of the most highly anticipated races of the season, Summer McIntosh beat Katie Ledecky to claim the 400 free gold in Singapore. On the opening night of the 2025 World Aquatics Championships, McIntosh,

Ledecky, the most decorated female swimmer ever, and McIntosh, an 18-year-old Canadian quickly rising up the all-time ranks, are expected to face off in the most anticipated race of worlds — the 800m freestyle final on Aug. 2, the penultimate day of the eight-day competition.

In the first of two anticipated showdowns at world championships, the Canadian phenom McIntosh was dominant against the American Ledecky.