| Time | Date | Name | Meet |
|---|---|---|---|
| 53.57 | Feb. 9, 2024 | Ethan Esparza | UIL Region 5-5A Championships |
| 53.74 | Feb. 3, 2023 | Ethan Esparza | UIL Region 6-5A Championship |
| 54.52 | Jan. 27, 2023 | Ethan Esparza | UIL District 20-5A Championships |
| 56.50 | Feb. 8, 2022 | Ethan Esparza | UIL Region 6-5A Championship |
| 57.17 | Jan. 28, 2022 | Ethan Esparza | UIL District 24-5A Championships |
