| Time | Date | Name | Meet |
|---|---|---|---|
| 48.71 | Feb. 10, 2023 | Gio Germano | Metro Atlantic Athletic Conference Championships |
| 48.86 | Feb. 11, 2022 | Kevin Vu | Metro Atlantic Athletic Conference Championships |
| 48.95 | Feb. 13, 2015 | Shane Baxter | Metro Atlantic Athletic Conference Championships |
| 49.68 | Dec. 6, 2014 | Shane Baxter | Zippy Invitational |
| 51.17 | Dec. 1, 2012 | Shane Baxter | Zippy Invitational |
| 51.25 | Feb. 18, 2011 | Evinn Drusys | Metro Atlantic Athletic Conference Championships |
| 51.37 | Dec. 4, 2010 | Evinn Drusys | Akron Invitational |
| 51.47 | Feb. 19, 2010 | Evinn Drusys | Metro Atlantic Athletic Conference Championships |
| 52.34 | Feb. 28, 2009 | Evinn Drusys | ECAC Open Swimming & Divi |
