| Name | Time | Date | Meet |
|---|---|---|---|
| Christel Simms | 47.96 | Jan. 19, 2012 | – |
| Presley Bard | 51.62 | March 17, 2011 | 2011 NCAA Division I Womens Championships |
| Kristen Lahey | 51.71 | March 19, 2009 | 2009 NCAA Division I Womens Championships |
| Kristen Lahey | 52.99 | Oct. 24, 2008 | 2008 SMU Classic |
| Kristen Lahey | 53.93 | March 8, 2007 | 2007 NCAA Division I Womens Championships |
