| Mark | Athlete | School | Year | Meet |
|---|
| 12.52 | Alyssa Boshart | Sweet Grass Co./Big Timber (B) | 11 | State B |
| 12.74 | Cora Pesanti | Anaconda (B) | 11 | John Tomich Invitational |
| 12.79 | Clare Ronayne | Jefferson/Boulder (B) | 9 | State B |
| 12.83 | Taylor Evans | Conrad (B) | 9 | Cascade B-C Top 12 |
| 12.92 | Emily Cooley | Sweet Grass Co./Big Timber (B) | 11 | State B |
| 12.99 | Katie Whitehurst | Whitehall (B) | 12 | State B |
| 13.01 | Ashlyn Lutts | Baker (B) | 11 | State B |
| 13.08 | Jewel Olson | Wolf Point (B) | 12 | MHSA Class A-B State Track & Field Meet |
| 13.10 | Sydney Brander | Saint Ignatius (B) | 12 | Eureka A-B-C Top 8 |
| 13.14 | Maxine Hoagland | Whitehall (B) | 10 | Park Invitational #3 |
| 13.14 | Grace Ekness | Shepherd (B) | 10 | 4B Districts |