Fastest swim long course 50 metres freestyle (female)
- Who
- Kate Douglass
- What
- 23.19 second(s)
- Where
- United States (Irvine)
- When
- 15 August 2026
The fastest swim long course 50 metres freestyle (female) is 23.19 seconds, achieved by Kate Douglass (USA) in Irvine, California, USA, on 15 August 2026.
The women’s 50 m free world record was broken four times in three months in 2026 – three times by Kate Douglass and once by her compatriot Gretchen Walsh. Douglass ended the year with the record after clocking two fastest times on the same day at the 2026 Pan Pacific Swimming Championships (50m) in Irvine. She swam 23.49 seconds in the heats before touching home in 23.19 seconds in the final.