| Time | Date | Name | Meet |
|---|---|---|---|
| 47.77 | Feb. 27, 2015 | Mike Lucchesi | Horizon League Championships |
| 48.19 | Feb. 28, 2014 | Mike Lucchesi | Horizon League Championships |
| 48.38 | Feb. 24, 2012 | Jordan Diel | Horizon League Championships |
| 48.57 | Feb. 25, 2011 | Jordan Diel | Horizon League Championships |
| 48.71 | Feb. 27, 2009 | Jordan Diel | Horizon League Championships - Day Three - Finals |
| 51.82 | Nov. 14, 2008 | Jordan Diel | Xavier, St. Louis, UW-Milwaukee @IUPUI |
| 52.39 | Oct. 10, 2008 | Jordan Diel | UW-Milwaukee @Wisconsin |
