| Name | Time | Date | Meet |
|---|---|---|---|
| Nick Toepfer | 58.11 | July 11, 2019 | New England Senior Championships |
| Auston Ramsay | 58.88 | Aug. 5, 2015 | YMCA Long Course National Championship |
| Auston Ramsay | 59.86 | Aug. 2, 2015 | Speedo Junior National Championships |
| Pat Reams | 1:01.71 | Feb. 10, 2004 | ConocoPhillips Spring National Championships |
| Matt Sabin | 1:07.96 | July 28, 2003 | 2003 YMCA National Long Course Championships |
| Patrick Sagui | 1:13.11 | July 27, 2000 | 2000 NE 13 & Over Age Group Championships |
