Overview
- Katie Ledecky won the 1500m freestyle to tie Michael Phelps with 15 career individual world titles.
- Mollie O'Callaghan broke the 14-year-old 200m freestyle world record previously held by Federica Pellegrini.
- Kaylee McKeown took gold in the 50m and 100m backstroke events.
- Léon Marchand earned France three gold medals in the 200m butterfly, 200m individual medley, and 400m individual medley.
- year-old Canadian Summer McIntosh won the 200m butterfly and took bronze in the 200m freestyle.