| Time | Date | Name | Meet |
|---|---|---|---|
| 51.94 | Feb. 12, 2010 | Spencer Johnson | Michigan Intercollegiate Athletic Association Championships |
| 52.60 | Feb. 11, 2010 | Spencer Johnson | Michigan Intercollegiate Athletic Association Championships |
| 53.05 | Dec. 4, 2009 | Spencer Johnson | Calvin Invitational |
| 57.20 | Oct. 24, 2009 | Andrew Brunner | MIAA Relays |
