| Time | Date | Name | Meet |
|---|---|---|---|
| 52.65 | March 8, 2013 | Eetu Karvonen | NCAA Division II Championships |
| 53.29 | March 16, 2012 | Eetu Karvonen | NCAA Division II Championships |
| 53.45 | Feb. 17, 2012 | Eetu Karvonen | Rocky Mountain Athletic Conference Championships |
| 54.05 | Dec. 3, 2011 | Eetu Karvonen | Husky Invitational |
| 55.56 | March 11, 2011 | Ralph Herberg | NCAA Division II Championships |
| 56.16 | March 12, 2010 | Ralph Herberg | NCAA Division II Championships |
| 57.79 | Feb. 12, 2010 | Ralph Herberg | Rocky Mountain Athletic Conference Championship |
| 1:00.37 | Jan. 2, 2010 | Ralph Herberg | Grand Canyon vs. Mesa State, Pacific |
