| Mark | Athlete | School | Year | Meet |
|---|
| 58.94 | Taylor Ludwig | Laurel (A) | 12 | Eastern A Divisional |
| 59.98 | Lydia Kryshak | Whitefish (A) | 11 | Western A Divisional |
| 1:00.09 | Myhia Metzenberg | Custer Co./Miles City (A) | 12 | Midland Roundtable Top Ten |
| 1:00.23 | Kendra Zander | Dawson Co./Glendive (A) | 12 | State A |
| 1:00.24 | Lauren Schulz | Whitefish (A) | 10 | State A |
| 1:00.25 | Heidi Nisly | Corvallis (A) | 12 | Western A Divisional |
| 1:00.63 | Madison Patrick | Park/Livingston (A) | 12 | Midland Roundtable Top Ten |
| 1:00.76 | Emme Warnken | Corvallis (A) | 12 | Western A Divisional |
| 1:00.88 | Josie Windauer | Columbia Falls (A) | 9 | Columbia Falls-Glacier Dual |
| 1:01.54 | Kiara Burlage | Columbia Falls (A) | 12 | State A |
| 1:01.88 | Katie Wirtzberger | Havre (A) | 9 | Eastern A Divisional |
| 1:01.90 | Shaeley Brown | Polson (A) | 9 | Western A Divisional |