The U.S. Swimming Championships air live on Peacock and NBCSN from July 28-Aug. 1.

Canadian Summer McIntosh won the 400m freestyle — the first of her two head-to-heads with Katie Ledecky — to open her bid to win a record-tying five individual gold medals at the World Swimming ...

Host Botswana closed the World Relays by running the third-fastest men's 4x400m in history, while South African Lythe Pillay ran the fastest relay leg in history. Botswana won the race in Gaborone in ...