| Mark | Athlete | School | Year | Meet |
|---|
| 25.54 | Brittany Chilcott | Stevensville (A) | 12 | Smelter City Invitational |
| 25.59 | Marlow Schulz | Whitefish (A) | 10 | Northwestern A Divisional |
| 25.90 | Amanda Foley | Whitefish (A) | 12 | Northwestern A Divisional |
| 26.10 | Sadi Henderson | Corvallis (A) | 10 | Southwestern A Divisional |
| 26.15 | Anna DiGallonardo | Polson (A) | 11 | 4-17 Big Sky Triangular |
| 26.33 | Sammy Evans | Havre (A) | 12 | Central A Divisional |
| 26.49 | Faith Kjelstrup | Dawson Co./Glendive (A) | 12 | Miles City Invitational |
| 26.78 | Kiera Bullock | Fergus/Lewistown (A) | 12 | Gallatin Valley Invitational |
| 26.87 | Jamie Riley | Hardin (A) | 12 | Eastern A Divisional |