| Mark | School | Meet |
|---|
| 48.54 | Whitefish (A) | State A |
| 48.99 | Corvallis (A) | State A |
| 50.37 | Beaverhead Co./Dillon (A) | State A |
| 50.45 | Fergus/Lewistown (A) | State A |
| 51.10 | Park/Livingston (A) | State A |
| 51.15 | Columbia Falls (A) | State A |
| 51.17 | Polson (A) | Northwestern A Divisional |
| 51.70 | Hamilton (A) | State A |
| 52.57 | Laurel (A) | State A |
| 52.58 | Custer Co./Miles City (A) | Eastern A Divisional |
| 52.74 | Billings Central (A) | State A |
| 52.79 | Bigfork (A) | 7B Districts |
| 52.80 | Butte Central (A) | Dillon Invitational |
| 52.90 | Dawson Co./Glendive (A) | Eastern A Divisional |
| 52.96 | Havre (A) | State A |
| 52.97 | Frenchtown (A) | State A |