| Name | Time | Date | Meet |
|---|---|---|---|
| Bryce Bohman | 46.40 | Dec. 1, 2017 | USA Swimming Winter National Championships |
| Ian Crocker | 45.23 | Jan. 15, 2007 | Toyota Grand Prix |
| Daniel Rohleder | 48.64 | Feb. 26, 2004 | Speedo Champions Series - College Station |
| Sean McDevitt | 52.14 | Dec. 5, 2003 | NT COR A 29th Annual Winter |
| Rob McFarland | 54.07 | March 8, 2001 | Short Course TAGS 2001 |
| Rob McFarland | 54.82 | March 2, 2001 | Speedo Champions Series - San Antonio |
| ERIC SWEENEY | 1:18.89 | Nov. 4, 2000 | 2000 NT North All Star Qualifying Meet |
