| Name | Time | Date | Meet |
|---|---|---|---|
| Gage Everitt | 52.38 | March 23, 2024 | Ben Hedberg Invitational |
| Ali Gad | 53.40 | April 14, 2023 | Mt. Sac Meet of Champions |
| Nathan Downes | 54.16 | May 3, 2022 | CIF San Diego Section Div II Championship |
| John Hill | 56.10 | May 18, 2013 | 2012-13 California Boys & Girls San Diego Section - Best Times |
| Kyle Smith | 51.99 | May 16, 2006 | 2006 CIF Southern Section-Toyota Masters |
