| Time | Date | Name | Meet |
|---|---|---|---|
| 45.18 | March 25, 2016 | Luke Kaliszak | NCAA Division I Mens Championships |
| 46.25 | Feb. 19, 2015 | Brett Walsh | Southeastern Conference Championships |
| 46.50 | March 23, 2012 | Alexandru Coci | NCAA Division I Mens Championships |
| 47.17 | Feb. 17, 2012 | Alexandru Coci | Southeastern Conference Championships |
| 47.33 | Oct. 11, 2008 | Denes Zubcsek | Alabama @Florida State |
