BUDAPEST, Hungary—Katie Ledecky has started the United States’ medal collection at the world swimming championships with a gold by reclaiming her title in the women’s 400 meters on Saturday.
Ledecky clocked 3 minutes, 58.15 seconds—nearly two seconds off the world record—on the first day of racing for her fourth world title in the 400 freestyle after 2013, 2015, and 2017.