| Time | Date | Name | Meet |
|---|---|---|---|
| 53.50 | March 22, 2024 | Alex Grand'Pierre | NCAA Division III Championship |
| 53.52 | Feb. 24, 2024 | Alex Grand'Pierre | NESCAC Mens Championships |
| 53.66 | Feb. 18, 2023 | Alex Grand'Pierre | NESCAC Mens Championships |
| 53.92 | Feb. 19, 2022 | Alex Grand'Pierre | NESCAC Mens Championships |
| 55.03 | Dec. 4, 2021 | Alex Grand'Pierre | Maine State Invite |
| 56.46 | Feb. 18, 2017 | Mike Netto | NESCAC Men's Championships |
| 56.49 | Feb. 20, 2016 | Mike Netto | NESCAC Men's Championships |
| 56.89 | March 23, 2012 | Nathan Mecray | NCAA Division III Championships |
| 56.91 | Feb. 25, 2012 | Nathan Mecray | New England Small College Athletic Conference Men's Championships |
| 57.63 | Feb. 26, 2011 | Nathan Mecray | New England Small College Athletic Conference Mens Championships |
| 57.96 | Nov. 21, 2009 | Nathan Mecray | Bowdoin vs. Babson, MIT |
| 1:04.60 | Jan. 20, 2006 | Max Goldstein | ME Ground Hog International |
