| Name | Time | Date | Meet |
|---|---|---|---|
| Chloe Quarles | 57.93 | March 23, 2024 | Ben Hedberg Invitational |
| Chloe Quarles | 57.95 | May 1, 2023 | CIF San Diego Section Div II Championship |
| Aubrey Underwood | 58.86 | April 14, 2023 | Mt. Sac Meet of Champions |
| Haley Chasin | 58.98 | May 13, 2015 | 2014-15 California San Diego Section Championships - Division II |
| Haley Chasin | 59.24 | May 17, 2014 | 2013-14 California San Diego Section Championships - Division II |
| Lilly Marfia | 1:05.07 | May 16, 2006 | CIF - San Diego Section - Division II |
