| Name | Time | Date | Meet |
|---|---|---|---|
| Ella Bettencourt | 57.60 | Nov. 6, 2021 | CA RMDA Kevin B Perry Senior Invitational |
| Alex Roberts | 58.05 | Nov. 2, 2019 | CA RMDA Kevin Perry Senior Invitational |
| Samantha Goates | 57.36 | Jan. 15, 2007 | Toyota Grand Prix |
| Samantha Goates | 58.42 | March 3, 2005 | Speedo CA-NV Sectional Championships |
| Samantha Goates | 59.39 | March 11, 2004 | 2004 Speedo CA-NV Spring Sectionals |
| Samantha Goates | 1:02.08 | April 3, 2003 | 2003 PC Far Westerns |
| Samantha Goates | 1:03.52 | Feb. 27, 2003 | 2003 Calif-Nev Spring Speedo Champions Series |
| Joclyn Ford | 1:15.40 | Sept. 2, 2001 | PC MBSC Age Group Open |
| BRITTANI MARQUEZ | 1:22.28 | Sept. 1, 2001 | PC MBSC Age Group Open |
