| Name | Time | Date | Meet |
|---|---|---|---|
| Jonathan Chan | 54.58 | Jan. 29, 2023 | Amherst vs. Springfield |
| Michael Normoyle | 54.85 | Dec. 6, 2015 | Bomber Invitational |
| Michael Normoyle | 55.96 | Feb. 1, 2015 | Amherst vs. Springfield |
| Michael Normoyle | 56.03 | Jan. 3, 2015 | FIU Invitational |
| Michael Normoyle | 56.06 | Dec. 8, 2012 | Springfield vs. Middlebury |
| Josh Ernst | 56.94 | Nov. 21, 2010 | Springfield vs. Middlebury |
| Ryan Mackstutis | 57.75 | Nov. 22, 2009 | Middlebury vs. Springfield |
