| Name | Time | Date | Meet |
|---|---|---|---|
| Grace Davis | 1:07.47 | Feb. 24, 2024 | SCIAC Championships |
| Tara Leininger | 1:08.78 | Feb. 15, 2023 | SCIAC Championships |
| Isabel Swafford | 1:09.05 | Feb. 21, 2020 | SCIAC Championships |
| Jessica Sun | 1:10.32 | Nov. 18, 2017 | La Verne vs. Caltech |
| Jessica Sun | 1:11.55 | Nov. 11, 2017 | OC Invitational |
| Jacqueline Masehi-Lano | 1:15.73 | Jan. 28, 2012 | California Tech vs. Occidental |
| Justine Chia | 1:20.57 | Feb. 22, 2010 | Southern California Intercollegiate Athletic Conference Championships |
| Hanna Dodd | 1:26.49 | Jan. 9, 2010 | Redlands vs. Cal Tech |
