Katie Ledecky has ceded a tiny bit of ground in other events, but she's still unbeatable in the 1,500-meter freestyle.

The U.S. swimmer won her 22nd gold medal at the world championships by dominating a race she hasn’t lost since she was 13.

Also Friday, Toronto’s Josh Liendo and Montreal’s Ilya Kharun booked spots in the men’s 100-metre butterfly final Saturday. The two shared the Olympic podium in Paris last year, with Liendo taking silver and Kharun the bronze. Liendo turned in the second-fastest time in the semifinals of 50.24 seconds, while Kharun was fourth in 50.39.