| # | Athlete | Performance | Date | Meet |
|---|---|---|---|---|
| 1 | 00:52.73 | 05/01/2015 | 2015 Orange Relays @ Orange High School | |
| 2 | 00:54.65 | 03/23/2024 | 2024 Cloverleaf Early Bird Relays @ Cloverleaf High School | |
| 3 | 00:54.78 | 04/27/2018 | 2018 Orange Relays @ Orange High School | |
| 4 | 00:55.74 | 03/26/2022 | 2022 Cloverleaf Early Bird Relays @ Cloverleaf High School | |
| 5 | 00:56.48 | 04/28/2017 | 2017 Orange Relays @ Orange High School | |
| 6 | 00:58.70 | 04/26/2019 | 2019 Orange Relays @ Orange High School | |
| 7 | 00:59.96 | 04/29/2016 | 2016 Orange Relays @ Orange High School |