| Mark | Athlete | School | Year | Meet |
|---|
| 55.87 | Christina Aragon | Billings Senior (AA) | 11 | State AA |
| 56.13 | Carly Smiedala | Helena (AA) | 11 | State AA |
| 57.73 | Annie Hill | Glacier (AA) | 9 | State AA |
| 58.21 | Anna Beck | Billings Skyview (AA) | 11 | State AA |
| 58.89 | Josey Smiedala | Helena (AA) | 12 | Great Falls Optimist Invitational |
| 58.91 | Olivia Burgad | Missoula Sentinel (AA) | 11 | State AA |
| 58.92 | Jordan Gilcrist | Billings Senior (AA) | 9 | State AA |
| 59.21 | Maddie Brockel | Billings West (AA) | 9 | Skor-DeKam Invitational |
| 59.48 | Sydney Blain | Billings Senior (AA) | 9 | Midland Roundtable Top 10 |
| 59.63 | Ahna Kreitinger | Glacier (AA) | 10 | State AA |
| 59.96 | Maddie Orrell | Belgrade (AA) | 12 | State A |
| 1:00.45 | Elsa Sveen | Bozeman (AA) | 10 | Eastern AA Divisional |
| 1:00.89 | Maggie Smiedala | Helena (AA) | 9 | Skor-DeKam Invitational |
| 1:00.95 | Mia Werner | Bozeman (AA) | 10 | Eastern AA Divisional |
| 1:01.47 | Danielle Devlin | Great Falls (AA) | 9 | State AA |
| 1:01.57 | Monica White | Flathead (AA) | 12 | Libby-Flathead Dual |
| 1:01.67 | Keegan Day | Billings Skyview (AA) | 12 | Billings Skyview Meet 4/23 |
| 1:01.74 | Pipi Eitel | Belgrade (AA) | 10 | State A |
| 1:01.77 | Brielle Bumgarner | Glacier (AA) | 12 | Western AA Divisional |