| Mark | Athlete | School | Year | Meet |
|---|
| 44-09.5 | Ry Olson | Joliet (B) | 12 | 4B Districts |
| 43-10.75 | Payden Lynn | Three Forks (B) | 12 | State B |
| 43-06 | Zach Russell | Red Lodge (B) | 11 | Midland Roundtable Top 10 |
| 42-09.5 | Wyatt Brusven | Shelby (B) | 12 | Whitefish ARM Invitational |
| 42-01.5 | Avery Stiles | Jefferson/Boulder (B) | 11 | 5B Districts |
| 41-11.5 | Caleb Bailey | Joliet (B) | 11 | State B |
| 41-11 | Cooper Waters | Loyola Sacred Heart (B) | 12 | Western Top 10 Meet |
| 41-10 | Tanner Smith | Malta (B) | 11 | North/East Top 10 |
| 41-09 | Cormac Benn | Malta (B) | 10 | 2B Districts |
| 41-06 | Bryce Olson | Three Forks (B) | 12 | Helena Small Schools Meet |
| 41-04.5 | Ryan Tirrell | Loyola Sacred Heart (B) | 12 | Western B Divisional |
| 41-04.5 | Keeley Bake | Fairfield (B) | 11 | Fairfield-Belt Invite #1 |
| 41-00 | Kordel Ellis | Huntley Project (B) | 11 | Billings Senior Tuesday Meet #2 |