Katie Ledecky reclaimed the 400m freestyle crown to open the world swimming championships, prevailing in the absence of rival Ariarne Titmus of Australia.

Ledecky won in a championship record 3 minutes, 58.15 seconds, topping 15-year-old Canadian Summer McIntosh by 1.24 seconds. American Leah Smith took bronze, matching her finish from the 2016 Olympics and 2019 Worlds. Read More