| Time | Date | Name | Meet |
|---|---|---|---|
| 47.39 | March 28, 2015 | Patrick Mulcare | Speedo Champions Series - Austin |
| 47.69 | March 15, 2014 | Patrick Mulcare | Speedo Champions Series - Federal Way |
| 49.31 | March 12, 2011 | Aaron Young | Speedo Sectionals - Federal Way, WA |
| 49.69 | March 10, 2010 | Aaron Young | Speedo Champions Series - Federal Way |
| 50.89 | Dec. 4, 2009 | Steven Ung | AT&T Short Course National Championships |
| 51.03 | Dec. 5, 2008 | Connor McCarroll | ConocoPhillips Short Course Championships |
| 55.69 | March 6, 2003 | Andrew Rothrock | American Short Course Championships |
