| Name | Time | Date | Meet |
|---|---|---|---|
| Auston Ramsay | 51.08 | April 1, 2016 | Eastern Zone Speedo Short Course Super Sectionals |
| Pat Reams | 49.78 | April 5, 2005 | 2005 YMCA Nationals Short Course Championships |
| Pat Reams | 50.40 | April 6, 2004 | 2004 YMCA Nationals Short Course Championships |
| Pat Reams | 52.03 | April 14, 2003 | YMCA Short Course Championships |
| Chris McGrath | 1:04.46 | March 21, 2003 | 2003 NE YMCA SWIM CHAMPIONSHIPS |
| Nolan Hermanson | 1:09.31 | March 23, 2002 | 2002 NEW ENGLAND YMCA SWIM CHAMPIONSHIPS |
