| Mark | Athlete | School | Year | Meet |
|---|
| 38.83 | Mick Paffhausen | Beaverhead Co./Dillon (A) | 12 | Western Montana Top 10 |
| 39.49 | Daniel Pendergast | Stevensville (A) | 11 | State A |
| 40.16 | Keaton Grove | Whitefish (A) | 11 | State A |
| 40.34 | Jadin Casey | Stevensville (A) | 11 | State A |
| 40.45 | Zac Allen | Laurel (A) | 11 | State A |
| 40.93 | Jacob Clairmont | Polson (A) | 10 | Northwestern A Divisional |
| 41.12 | Kris Cleveland | Hamilton (A) | 12 | Darby-Florence Invitational |
| 41.16 | Troy Anderson | Beaverhead Co./Dillon (A) | 9 | MCPS Invitational |
| 41.45 | Jayson Lundberg | Hardin (A) | 12 | Jock Stop Invitational |
| 41.46 | Alex Wilson | Whitefish (A) | 12 | State A |
| 41.49 | Haiden Collins | Fergus/Lewistown (A) | 9 | Jock Stop Invitational |
| 41.55 | Jared Rubel | Polson (A) | 12 | Polson ABC Meet |
| 41.63 | Tanner Schwartz | Dawson Co./Glendive (A) | 12 | Elks Invitational |
| 42.56 | Carson Cantrell | Bigfork (A) | 11 | Western B Divisional |