| Mark | Athlete | School | Year | Meet |
|---|
| 57.21 | Odessa Zentz | Helena (AA) | 11 | State AA |
| 57.27 | Taylee Chirrick | Billings West (AA) | 9 | State AA |
| 57.46 | Mikenna Ells | Whitefish (A) | 12 | Nelson-Thomas ABC Meet |
| 58.32 | Sariah Maughan | Seeley-Swan (C) | 11 | State C |
| 58.34 | Jewel Olson | Wolf Point (B) | 12 | State B |
| 58.36 | Brooke Reuter | Savage (C) | 9 | State C |
| 58.45 | Anna Trudnowski | Butte (AA) | 12 | State AA |
| 58.68 | Madeline Severson | Manhattan (B) | 12 | State B |
| 58.81 | Hailey Burger | Helena Capital (AA) | 9 | State AA |
| 59.34 | Lindsey Paulson | Belt (C) | 11 | Choteau Twilight Meet |
| 59.42 | Alyse Aby | Laurel (A) | 10 | State A |
| 59.86 | Cerise Lee | Flathead (AA) | 11 | State AA |
| 59.87 | Brooke Stayner | Missoula Sentinel (AA) | 11 | Sentinel-Helena Dual |
| 59.88 | Alyssa Boshart | Sweet Grass Co./Big Timber (B) | 11 | Midland Roundtable Top 10 |
| 59.89 | Katie Whitehurst | Whitehall (B) | 12 | 5B Districts |
| 1:00.02 | Jadyn VanDyken | Manhattan Christian (C) | 10 | Midland Roundtable Top 10 |
| 1:00.06 | Peyton Walker | Flathead (AA) | 10 | Western AA Divisional |
| 1:00.21 | Elizabeth Field | Westby-Grenora (C) | 11 | State C |
| 1:00.23 | Rylee Boltz | Libby (A) | 10 | Lincoln County Meet |
| 1:00.24 | Kaitlin Grossman | Billings West (AA) | 11 | State AA |
| 1:00.28 | Havyn Vandenacre | Broadwater/Townsend (B) | 9 | 5B Districts |
| 1:00.28 | Aspen Giese | Fort Benton (C) | 12 | 9C Districts |
| 1:00.31 | Carly Cook | Laurel (A) | 10 | Midland Roundtable Top 10 |
| 1:00.49 | Claire Hutchison | Stevensville (A) | 10 | State A |
| 1:00.51 | Aley Aller | Sweet Grass Co./Big Timber (B) | 9 | Midland Roundtable Top 10 |
| 1:00.54 | Kellan Wahl | Billings Central (A) | 12 | State A |
| 1:00.59 | Carly Ryan | Helena (AA) | 11 | Western AA Divisional |
| 1:00.61 | Molly Molvig | Billings Central (A) | 12 | State A |
| 1:00.61 | Tori Noland-Gillespie | Flathead (AA) | 12 | Western AA Divisional |
| 1:00.95 | Hailey Ells | Whitefish (A) | 9 | Whitefish-Flathead Dual |
| 1:01.06 | Brooke Zetooney | Whitefish (A) | 9 | Whitefish-Flathead Dual |
| 1:01.13 | MacKenzie Morgan | Noxon (C) | 12 | State C |
| 1:01.38 | Perry Paffhausen | Missoula Hellgate (AA) | 11 | Western AA Divisional |
| 1:01.40 | Chloe Davies | Billings West (AA) | 11 | Midland Roundtable Top 10 |
| 1:01.44 | Hallie Neibauer | Chinook (C) | 9 | North/East Top 10 |
| 1:01.52 | Ashton Lewis | Stevensville (A) | 12 | Western A Divisional |
| 1:01.53 | Loy Waid | Havre (A) | | State A |
| 1:01.56 | Laynie Sattoriva | North Star (C) | 10 | State C |
| 1:01.66 | Isabelle Cooke | Whitefish (A) | 9 | Whitefish - Flathead Dual Meet |
| 1:01.76 | Sabryn Knight | Missoula Sentinel (AA) | 12 | Sentinel-Hellgate Dual |
| 1:01.84 | Bella Klein | Roundup (B) | 11 | Southern B Divisional |
| 1:01.90 | Allie Dale | Twin Bridges (C) | | State C |
| 1:01.98 | Cooper Knarr | Bozeman (AA) | 12 | State AA |
| 1:02.03 | Hayley Burns | Bozeman (AA) | 11 | Bozeman-CMR Dual |