| Name | Time | Date | Meet |
|---|---|---|---|
| Zarek Wilson | 50.81 | March 21, 2021 | FG SOFL FGC Senior Championships |
| Carlos Vasquez | 53.10 | March 25, 2018 | Florida Gold Coast Senior Championships |
| Juan Zapata | 53.24 | Nov. 18, 2017 | FG PST 27th Speedo Winter Championships |
| Carlos Vasquez | 53.84 | March 26, 2017 | FGC Senior Championships |
| Juan Zapata | 55.52 | Nov. 19, 2016 | FG Speedo Winter Championships |
