| Mark | Athlete | School | Year | Meet |
|---|
| 11:22.49 | Morgan Delaney | Polson (A) | 10 | Russ Plicher Western Top 10 |
| 11:22.87 | Capri Farmer | Libby (A) | 9 | Last Chance Quad |
| 11:27.92 | Zoey Real Bird | Hardin (A) | 10 | Billings Invite |
| 11:31.72 | Karis Brightwings-Pease | Hardin (A) | 10 | Sidney Twilight Meet |
| 11:31.89 | Grace Jagodzinski | Billings Central (A) | 10 | Eastern A Divisional |
| 11:38.12 | Aleigha Child | Hamilton (A) | 10 | Russ Plicher Western Top 10 |
| 11:38.98 | Shayla Brittain | Billings Central (A) | 11 | Eastern A Divisional |
| 11:52.26 | Mila Johns | Columbia Falls (A) | 11 | Russ Plicher Western Top 10 |
| 11:54.79 | Hannah McCormick | Dawson Co./Glendive (A) | 9 | Sidney Twilight Meet |
| 11:56.15 | Laina Larson | Lockwood (A) | 12 | Midland Roundtable Top 10 |
| 11:58.49 | Kimora Scott | Polson (A) | 9 | MCPS Invitational |
| 12:02.35 | Chloe Savoy | Columbia Falls (A) | 12 | Archie Roe Track Meet |
| 12:06.17 | Autumn Benson | Corvallis (A) | 12 | Nelson-Thomas ABC Meet |
| 12:12.81 | Rosa Layton | Custer Co./Miles City (A) | 9 | Glendive Shriners Invitational |
| 12:12.98 | Eleanor Rheinhardt | Frenchtown (A) | 11 | Hamilton Bronc Invitational |
| 12:13.04 | Findley Dezzani | Columbia Falls (A) | 11 | Nelson-Thomas ABC Meet |
| 12:17.65 | Mya Badger | Columbia Falls (A) | 12 | Western A Divisional |
| 12:24.00 | Ryleigh Kleinke | Sidney (A) | 12 | Sidney Invitational |