| Name | Time | Date | Meet |
|---|---|---|---|
| Grace Davis | 31.88 | Feb. 24, 2024 | SCIAC Championships |
| Charlotte Zhang | 31.94 | Feb. 17, 2023 | SCIAC Championships |
| Isabel Swafford | 32.13 | Feb. 21, 2020 | SCIAC Championships |
| Isabel Swafford | 32.59 | Feb. 1, 2020 | La Verne vs. Caltech vs. Westmont |
| Jessica Sun | 33.22 | Feb. 9, 2019 | Caltech vs. La Verne |
| Serena Yan | 34.17 | Nov. 17, 2018 | C-M-S vs. Caltech, Occidental (Tri-Meet) |
| Laura Newport | 37.53 | Oct. 24, 2015 | Pomona-Pitzer vs. Cal Tech |
| Karen Dowling | 39.02 | Jan. 21, 2012 | Cal Tech vs. Pomona-Pitzer |
