| Mark | Athlete | School | Year | Meet |
|---|
| 46.87 | Annie Kaul | Plentywood (C) | 11 | State C |
| 46.92 | Claire Bucklin | Sunburst (C) | 10 | State C |
| 47.14 | Teigan Taylor | Fairview (C) | 12 | Norm Girard North/East Top 10 |
| 47.49 | Audrey Sampsen | Plentywood (C) | 10 | State C |
| 47.57 | Kara Reed | Denton-Geyser-Stanford (C) | 11 | Northern C Divisional |
| 47.68 | Mady Willis | Scobey (C) | 9 | State C |
| 48.04 | Emma Konen | Twin Bridges (C) | 10 | State C |
| 48.44 | Grace Gackle | Circle (C) | 10 | Norm Girard North/East Top 10 |
| 48.80 | Alexis DeVries | Manhattan Christian (C) | 11 | 12C Districts |
| 48.90 | Allie Dale | Twin Bridges (C) | 10 | State C |