| Name | Time | Date | Meet |
|---|---|---|---|
| Charles Hobelmann | 52.72 | April 15, 2021 | KHSAA Region Two |
| Charles Hobelmann | 53.16 | Feb. 1, 2020 | KHSAA Region Two Championship |
| Samuel Hall | 53.82 | Feb. 28, 2014 | 2013-14 Kentucky State Championships |
| Samuel Hall | 54.10 | Feb. 11, 2014 | 2014 Kentucky Region One Championships |
| Samuel Hall | 55.15 | Feb. 22, 2013 | 2012-13 Kentucky Boys & Girls Championships |
| Samuel Hall | 56.73 | Feb. 24, 2012 | 2011-12 Kentucky Boys & Girls Championships |
