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| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 51.63 | March 13, 2015 | Anton Lobanov | Nova Southeastern University | NCAA Division II Championships |
| 52.00 | Feb. 21, 2015 | Anton Lobanov | Nova Southeastern University | Sunshine State Conference Championships |
| 52.43 | March 13, 2009 | Alex HETLAND | University of Tampa | NCAA DII Men's & Women's Championships |
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