| Name | Time | Date | Meet |
|---|---|---|---|
| Jack Boyd | 51.46 | Aug. 6, 2013 | USA Swimming Junior National Championships |
| Jack Boyd | 53.72 | March 25, 2012 | Speedo Champions Series - Buffalo, NY (18 & Under Results) |
| Jack Boyd | 55.42 | Aug. 5, 2010 | Speedo Champions Series - Buffalo |
| Jim Losi | 56.36 | March 9, 2008 | 2008 Speedo Champions Series |
| Jim Losi | 56.48 | March 8, 2008 | 2008 Speedo Champions Series |
| Daniel Carver | 59.01 | May 13, 2006 | 2006 LE Youngstown LC Season Opener |
| Jim Losi | 1:00.05 | May 14, 2005 | Youngstown LC Season Opener |
