| Name | Time | Date | Meet |
|---|---|---|---|
| Henrik Pohlmann | 56.59 | Aug. 7, 2015 | 2015 Phillips 66 National Championships |
| Henrik Pohlmann | 56.71 | Aug. 8, 2013 | USA Swimming Junior National Championships |
| JK Koehler | 58.24 | Aug. 4, 2010 | 2010 ConocoPhillips National Championships |
| David Hughes | 58.79 | July 23, 2003 | Speedo Champions Series - Bloomington |
| JK Koehler | 1:03.87 | Aug. 5, 2002 | 2002 NCSA Junior National Championship |
