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| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 42.98 | March 24, 2018 | Oliver Smith | Emory University | NCAA Division III Championships |
| 43.16 | March 24, 2012 | Zach Turk | Kenyon College | NCAA Division III Championships |
| 43.60 | March 21, 2009 | Caleb Courage | Grove City College | NCAA Division III Championships |
| 44.36 | March 17, 2007 | Caleb Courage | Grove City College | NCAA Division III Mens Championships |
| 44.51 | March 18, 2006 | Caleb Courage | Grove City College | NCAA Division III Mens Championships |
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