Men's Records Ages 30-34
| Rank | Time | Swimmer | Meet | Date |
|---|---|---|---|---|
| 1 | 00:47.28 | Chad Morris | Illinois State 2010 | 04/23/2010 |
| 2 | 00:47.45 | John Javorski | Nationals (USMS Short Course) 2010 | 5/21/2010 |
| 3 | 00:52.16 | Ryan Mulcahy | USMS Spring Nationals 2011 2011 | 4/28/2011 |
| 4 | 00:56.50 | Lonny Boeke | Nationals (USMS Short Course) 2010 | 5/21/2010 |