| Name | Time | Date | Meet |
|---|---|---|---|
| Kaitlyn Dobler | 56.67 | March 22, 2024 | NCAA Division I Womens Championship |
| Kaitlyn Dobler | 56.93 | March 18, 2022 | NCAA Division I Womens Championship |
| Kaitlyn Dobler | 57.31 | Feb. 25, 2022 | Pacific 12 Championships (W) |
| Kaitlyn Dobler | 57.46 | March 19, 2021 | NCAA Division I Women's Championships |
| Kaitlyn Dobler | 57.71 | Feb. 12, 2021 | USC vs. UCLA, Utah |
| Rebecca Soni | 58.10 | Jan. 1, 2009 | – |
| Rebecca Soni | 59.19 | March 21, 2008 | 2008 NCAA Division I Womens Championships |
| Kristina Sieper | 1:02.39 | March 9, 2007 | 2007 NCAA Division I Womens Championships |
