| Name | Time | Date | Meet |
|---|---|---|---|
| Zarek Wilson | 49.21 | Dec. 10, 2021 | 31st Speedo Winter Championships - Plantation |
| Eddy Marin | 49.62 | March 20, 2021 | FG SOFL FGC Senior Championships |
| Carlos Vasquez | 49.71 | Nov. 10, 2017 | – |
| Carlos Vasquez | 51.92 | March 25, 2017 | FGC Senior Championships |
| Diego Machado | 52.25 | March 17, 2017 | NCSA Spring Junior National Championship |
| Carlos Vasquez | 53.31 | Nov. 19, 2016 | FG Speedo Winter Championships |
