| Time | Date | Name | Meet |
|---|---|---|---|
| 44.40 | Feb. 17, 2024 | Levi Morgan | Metro Atlantic Athletic Conference Championships |
| 44.60 | Dec. 2, 2018 | Dominykas Intas | Zippy Invitational |
| 45.68 | Feb. 15, 2014 | Robby Brown | Metro Atlantic Athletic Conference Championships |
| 46.77 | Feb. 20, 2010 | Evinn Drusys | Metro Atlantic Athletic Conference Championships |
| 48.38 | March 1, 2009 | Jon Matchette | ECAC Open Swimming & Divi |
| 49.80 | Nov. 7, 2008 | Evinn Drusys | Niagra & Youngstown State @Cleveland State |
