| Time | Date | Name | Meet |
|---|---|---|---|
| 58.21 | Dec. 3, 2022 | Connor Oswald | Ranger Invitational |
| 59.07 | Feb. 19, 2022 | Connor Oswald | Landmark Conference Championships |
| 1:00.05 | Dec. 4, 2021 | Connor Oswald | Gettysburg Invitational |
| 1:00.52 | Feb. 18, 2017 | Kieran Koehler | Landmark Conference Championships |
| 1:02.01 | Feb. 13, 2016 | Kieran Koehler | Landmark Conference Championships |
| 1:02.05 | Feb. 15, 2014 | Kieran Koehler | Middle Atlantic Conference Championships |
| 1:04.62 | Feb. 11, 2012 | Shaun Martin | Middle Atlantic Conference Championships |
| 1:07.44 | Feb. 12, 2011 | Shaun Martin | Middle Atlantic Conference Championships |
| 1:07.86 | Dec. 4, 2010 | Shaun Martin | Franklin & Marshall Invitational |
| 1:08.03 | Feb. 13, 2010 | Shaun Martin | Middle Atlantic States Championships |
| 1:10.10 | Dec. 5, 2009 | Shaun Martin | Franklin & Marshall Invitational |
