| Time | Date | Name | Meet |
|---|---|---|---|
| 28.18 | Aug. 5, 2018 | Roger Zhu | Maryland Swimming Long Course Championships |
| 29.51 | Aug. 6, 2017 | Roger Zhu | Maryland Long Course Championships |
| 29.79 | July 8, 2017 | Roger Zhu | Sandbox Invitational |
| 30.24 | Aug. 7, 2016 | Isaac Cha | Maryland LCM Championships |
| 31.18 | July 13, 2014 | CONNOR STEWART | MD NBAC Mid-Summer Classic |
| 31.86 | July 15, 2005 | Ryan Leonard | WV LSC LC Swimming Champi |
