| Mark | Athlete | School | Year | Meet |
|---|
| 56.02 | Odessa Zentz | Helena (AA) | 12 | State AA |
| 57.04 | Taylee Chirrick | Billings West (AA) | 10 | State AA |
| 57.49 | Jadyn VanDyken | Manhattan Christian (C) | 11 | State C |
| 57.59 | Sariah Maughan | Seeley-Swan (C) | 12 | State C |
| 58.09 | Madilyn Todorovich | Helena (AA) | 9 | Western AA Divisional |
| 58.40 | Brooke Reuter | Savage (C) | 10 | State C |
| 58.79 | Hailey Ells | Whitefish (A) | 10 | Western A Divisional |
| 59.01 | Olivia Lewis | Corvallis (A) | 10 | State A |
| 59.20 | Alyssa Boshart | Sweet Grass Co./Big Timber (B) | 12 | State B |
| 59.51 | Brooke Zetooney | Whitefish (A) | 10 | State A |
| 59.58 | Hailey Burger | Helena Capital (AA) | 10 | State AA |
| 59.81 | Makenzie Sheils | Columbus (B) | 11 | State B |
| 59.84 | Alexis Brauer | Billings Skyview (AA) | 11 | Eastern AA Divisional |
| 59.88 | Halle Haber | Billings West (AA) | 10 | State AA |
| 59.95 | Ela Bloyder | Billings West (AA) | 11 | State AA |
| 1:00.01 | Emilie Crago | Great Falls CMR (AA) | 12 | Great Falls Crosstown Dual |
| 1:00.03 | Sidney Gulick | Glacier (AA) | 12 | State AA |
| 1:00.05 | Carly Cook | Laurel (A) | 11 | State A |
| 1:00.07 | Maya Carvey | Lincoln Co./Eureka (B) | 12 | State B |
| 1:00.24 | Ave Roberts | Billings Skyview (AA) | 11 | State AA |
| 1:00.27 | Chloe Raats | Bigfork (A) | 12 | Archie Roe Invite |
| 1:00.30 | Alyse Aby | Laurel (A) | 11 | State A |
| 1:00.35 | Olivia Collins | Gallatin (Bozeman) (AA) | 11 | Butte-Bozeman-Gallatin Tri |
| 1:00.35 | Jasmyn Murphy | Three Forks (B) | 12 | State B |
| 1:00.37 | Peyton Walker | Flathead (AA) | 11 | Flathead-Hellgate-Sentinel Tri |
| 1:00.43 | Claire Hutchison | Stevensville (A) | 11 | Western A Divisional |
| 1:00.44 | Ela Bloyder | Billings West (AA) | 11 | Eastern AA Divisional |
| 1:00.52 | Hadassah Wilson | Darby (B) | 12 | State C |
| 1:00.53 | Gracie Bradley | Colstrip (B) | 12 | 3B Districts |
| 1:00.54 | Audrey Sampsen | Plentywood (C) | 10 | State C |
| 1:00.65 | Rachael Wilmot | Whitefish (A) | 9 | Nelson-Thomas ABC Meet |
| 1:00.76 | Hayley Burns | Bozeman (AA) | 12 | Skor DeKam Invite |
| 1:00.85 | Mia Handran | Scobey (C) | 10 | State C |
| 1:00.86 | Ruby Lorenz | Missoula Sentinel (AA) | 11 | Western AA Divisional |
| 1:00.92 | Ally Sempf | Columbia Falls (A) | 10 | Western A Divisional |
| 1:01.05 | Leela Ormsby | Billings Senior (AA) | 9 | Eastern AA Divisional |
| 1:01.10 | Sydney Morris | Billings Skyview (AA) | 11 | Eastern AA Divisional |
| 1:01.15 | Sophia Miller | Missoula Hellgate (AA) | 10 | Flathead-Hellgate-Sentinel Tri |
| 1:01.36 | Rylee Boltz | Libby (A) | 11 | Russ Plicher Top 10 |
| 1:01.37 | Beatrice Bentler | Billings Skyview (AA) | 10 | Eastern AA Divisional |
| 1:01.39 | Mykayla Miller | Missoula Sentinel (AA) | 10 | Greg Rice City Meet |
| 1:01.41 | Aley Aller | Sweet Grass Co./Big Timber (B) | 10 | State B |
| 1:01.53 | Bella Klein | Roundup (B) | 12 | State B |
| 1:01.69 | Grace Stewart | Belgrade (AA) | 10 | Eastern AA Divisional |
| 1:01.71 | Ashlyn Graham | Gallatin (Bozeman) (AA) | | Eastern AA Divisional |
| 1:01.72 | Brynn Brower | Billings Skyview (AA) | 9 | Midland Roundtable Top 10 |
| 1:01.75 | Akilah Kubi | Flathead (AA) | 11 | Western AA Divisional |
| 1:01.89 | Hadley Brown | Bozeman (AA) | 9 | Yellowstone Bank Freshman Invite |
| 1:01.91 | Kara Reed | Denton-Geyser-Stanford (C) | 11 | Al Walker Memorial Meet |