| Name | Time | Date | Meet |
|---|---|---|---|
| Auston Ramsay | 49.70 | Dec. 11, 2015 | Speedo Winter Junior Championships - East |
| Auston Ramsay | 49.74 | March 21, 2015 | Speedo Champions Series - Ithaca, NY |
| Graham Barrett | 53.98 | April 2, 2014 | 2014 YMCA Short Course National Championship |
| Drew Palmieri | 54.11 | April 14, 2003 | YMCA Short Course Championships |
| Pat Reams | 56.39 | March 6, 2003 | New England Swimming Senior Championships |
| Nolan Hermanson | 1:12.58 | March 23, 2002 | 2002 NEW ENGLAND YMCA SWIM CHAMPIONSHIPS |
