| Mark | Athlete | School | Year | Meet |
|---|
| 43.94 | Brooke Stayner | Missoula Sentinel (AA) | 11 | State AA |
| 45.61 | Kaitlyn McColly | Hinsdale (C) | 12 | 3C Districts |
| 45.64 | Keara Burgess | Missoula Big Sky (AA) | 12 | State AA |
| 45.82 | Kathryn Sheridan | Helena Capital (AA) | 9 | State AA |
| 46.02 | Anna Trudnowski | Butte (AA) | 12 | State AA |
| 46.09 | Rileigh McGree | Butte Central (A) | 11 | State A |
| 46.09 | Gracie Bradley | Colstrip (B) | 11 | Midland Roundtable Top 10 |
| 46.13 | Havyn Vandenacre | Broadwater/Townsend (B) | 9 | Southern B Divisional |
| 46.15 | Hailey Ells | Whitefish (A) | 9 | State A |
| 46.34 | Olivia Lewis | Corvallis (A) | 9 | Western A Divisional |
| 46.60 | Macee Murphy | Huntley Project (B) | 11 | 4B Districts |
| 46.63 | Carlee Fryberger | Charlo (C) | 12 | State C |
| 46.78 | Ainsley Shipman | Beaverhead Co./Dillon (A) | 11 | Western A Divisional |
| 46.84 | Sidney Gulick | Glacier (AA) | 11 | State AA |
| 47.00 | Skye Thompson | Flathead (AA) | 12 | State AA |
| 47.07 | Olleca Severson | Manhattan (B) | 12 | State B |
| 47.20 | Hailey Flamand | Missoula Hellgate (AA) | 11 | State AA |
| 47.28 | Jasmyn Murphy | Three Forks (B) | 11 | Park Invitational #3 |
| 47.38 | Abby Clark | Fort Benton (C) | 12 | Northern C Divisional |
| 47.49 | Audrey McElmurry | Missoula Sentinel (AA) | 12 | Sentinel-Capital Dual |
| 47.60 | Brayli Reimer | Red Lodge (B) | 10 | 4B Districts |
| 47.82 | Lauryn Petersen | Beaverhead Co./Dillon (A) | 11 | State A |
| 47.84 | Kara Reed | Denton-Geyser-Stanford (C) | 10 | Northern C Divisional |
| 48.09 | Claire Bucklin | Sunburst (C) | | State C |
| 48.16 | Rylee Armstrong | Fergus/Lewistown (A) | 10 | Eastern A Divisional |
| 48.18 | Grace Gackle | Circle (C) | 9 | North/East Top 10 |
| 48.19 | Cienna Soens | Billings Skyview (AA) | 9 | Billings Skyview-Belgrade Dual |
| 48.24 | Libby Linder | Helena Capital (AA) | 12 | Western Top 10 |
| 48.27 | Lily Tanko | Flathead (AA) | 11 | Western AA Divisional |
| 48.38 | Allie Wallace | Fort Benton (C) | 12 | Frenchtown Bronc Open |
| 48.42 | Sydney Petersen | Beaverhead Co./Dillon (A) | 9 | Western A Divisional |
| 48.46 | Maeve Ingelfinger | Whitefish (A) | 9 | Western A Divisional |
| 48.47 | Cerise Lee | Flathead (AA) | 11 | Western AA Divisional |
| 48.49 | Grace Alexander | Jefferson/Boulder (B) | 12 | John Tomich Invitational |
| 48.50 | Teigan Taylor | Fairview (C) | 11 | North/East Top 10 |
| 48.61 | Sadie Filius | Havre (A) | 11 | State A |
| 48.63 | MG Spotted Bear | Billings Skyview (AA) | 11 | State AA |
| 48.72 | Bella Klein | Roundup (B) | 11 | Colstrip Invite |
| 48.76 | Rachel Plaster | Helena (AA) | 11 | Helena Crosstown Dual |
| 48.79 | Megan Knack | Ennis (C) | | State C |