| Time | Date | Name | Meet |
|---|---|---|---|
| 52.07 | July 29, 2022 | Dominic Miller | USA Swimming Futures Championship - Cary |
| 52.44 | July 28, 2022 | Dominic Miller | USA Swimming Futures Championship - Cary |
| 53.12 | June 25, 2022 | Rian Covington | FL PSA Planet Swim Summer Championships |
| 54.30 | Feb. 14, 2021 | Matthew Koziol | Southern Zone South Sectional Championships |
| 54.69 | July 22, 2018 | Andy Relihan | Florida Swimming Senior LCM Championships |
| 54.86 | March 11, 2018 | Andy Relihan | Southern Zone South Sectional Championships |
| 54.98 | Aug. 5, 2017 | Andy Relihan | ISCA Summer Senior Championship |
| 56.45 | March 13, 2016 | Andy Relihan | Speedo Champions Series - Plantation |
