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| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 44.83 | March 23, 2024 | Gretchen Walsh | University of Virginia | NCAA Division I Womens Championship |
| 45.16 | Feb. 24, 2024 | Gretchen Walsh | University of Virginia | Atlantic Coast Championships |
| 45.56 | March 18, 2017 | Simone Manuel | Stanford University | NCAA Division I Womens Championships |
| 46.09 | March 21, 2015 | Simone Manuel | Stanford University | NCAA Division I Womens Championships |
| 46.61 | Feb. 18, 2012 | Anna Vanderpool-Wallace | Auburn University | Southeastern Conference Championships |
| 46.81 | Feb. 19, 2011 | Anna Vanderpool-Wallace | Auburn University | Southeastern Conference Championships |
| 47.17 | March 21, 2009 | Dana Vollmer | University of California-Berkeley | NCAA Division I Womens Championships |
| 47.24 | March 10, 2007 | Kara Lynn Joyce | University of Georgia | NCAA Division I Womens Championships |
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