4 × 100 m medley relay, women

What to remember

Breaststroke went to Kate Douglass. At the World Championships in Singapore on August 3, 2025, the American relay covered the 4 × 100 m medley in 3 min 49.34 s in a long course pool: Regan Smith on backstroke (57.57 s), Kate Douglass on breaststroke (1 min 04.27 s), Gretchen Walsh on butterfly (54.98 s) and Torri Huske on freestyle (52.52 s).

In a medley relay each swimmer takes a different stroke in a fixed order, backstroke first because its start is in the water. In this relay the second leg, breaststroke, was the slowest of the four.

Regan Smith, a backstroke and butterfly specialist, built up steadily. She broke through at the 2019 World Championships with two titles, won three medals but no gold at the 2020 Olympics, then two world titles in 2022 and five medals, including one gold, in 2023. At the 2024 Games she won five medals, two of them gold.