| Time | Date | Name | Meet |
|---|---|---|---|
| 27.31 | June 27, 2021 | Anicka Delgado | CA MVN Fran Crippen Time Trials |
| 27.43 | June 23, 2019 | Anicka Delgado | CA MVN Fran Crippen Memorial Swim Meet of Champions |
| 27.67 | June 24, 2018 | Anicka Delgado | CA MVN Fran Crippen Memorial Swim Meet of Champions |
| 31.50 | June 16, 2017 | Tara De Bellis | CA Buena/SCS - June Age Group Champs |
| 32.05 | May 28, 2017 | Tara De Bellis | CA Speedo Grand Challenge |
| 32.57 | July 29, 2016 | Elizabeth Meshkin | CA MVN Summer Junior Olympics |
| 34.39 | May 29, 2016 | Taylor Lowe | CA NOVA Speedo Grand Challenge |
