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USA Swimming Zone Teams
| Time | Date | Name | Team | Meet |
|---|---|---|---|---|
| 45.34 | Jan. 15, 2022 | Jilian Musser | Ephrata Tidal Waves | Ephrata vs Elizabethtown Aquatic Club |
| 46.29 | Dec. 13, 2014 | Abbey Weitzeil | Canyons Aquatic Club | Speedo WInter Junior Championships |
| 46.75 | March 29, 2014 | Simone Manuel | First Colony Swim Team, Inc. | NASA Junior National Championship |
| 47.03 | Jan. 13, 2007 | Natalie Coughlin | California Aquatics | Toyota Grand Prix |
| 48.52 | March 6, 2003 | Amanda Weir | SwimAtlanta | American Short Course Championships |
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