| Time | Date | Name | Meet |
|---|---|---|---|
| 50.80 | Nov. 7, 2014 | Emmie Jennings | 15 Alaska State Championships |
| 52.43 | Nov. 8, 2013 | Emmie Jennings | 14 Alaska State Championships |
| 52.73 | Nov. 2, 2012 | Emmie Jennings | 13 Alaska Championships |
| 53.09 | Nov. 4, 2011 | Sammy Burke | 12 Alaska Championships |
| 54.25 | Nov. 5, 2010 | Jordyn Caldwell | Alaska High School Best Times |
