| Time | Date | Name | Meet |
|---|---|---|---|
| 44.63 | March 27, 2009 | Tyler McGill | NCAA Division I Mens Championships |
| 45.02 | Feb. 20, 2009 | Matt Targett | Southeastern Conference Championships - Day Three - Finals |
| 45.51 | March 28, 2008 | Alexei Puninski | NCAA Division I Mens Championships |
| 45.87 | March 15, 2007 | Matt Targett | NCAA Division I Mens Championships |
