| Mark | Athlete | School | Year | Meet |
|---|
| 46-10.5 | Scott Klinker | Great Falls (AA) | 11 | State AA Championship |
| 46-04.5 | Brenden Fetter | Chinook (B) | 12 | Norm Girard North/East Top 10 |
| 46-01.5 | Caiden Sekuterski | Cascade (C) | 11 | 10C Districts |
| 45-09 | Oliver Simianer | Missoula Big Sky (AA) | 11 | Greg Rice City Meet |
| 45-06.25 | Dayrion Beard | Laurel (A) | 12 | State A Championship |
| 45-05.75 | Noah Wilson | Ennis (B) | 12 | State C Championship |
| 44-08 | Grady Walker | Missoula Sentinel (AA) | 11 | Russ Plicher Top 10 |
| 44-06 | Brody Thornsberry | Flathead (AA) | 11 | State AA Championship |
| 44-02.25 | Levi Peterson | Bigfork (A) | 12 | Western B Divisional |
| 44-01.25 | Lucas Powell | Corvallis (A) | 10 | State A Championship |
| 44-01 | Jasiah Hambira | Lustre Christian (C) | 12 | Northeast Track Invitational |
| 44-00 | Cameron Tobiness | Butte (AA) | 12 | State AA Championship |
| 43-11 | Sam Henderson | Butte Central (A) | 10 | Blue Devil Invitational |
| 43-08 | Johnslee Pierre | Lustre Christian (C) | 9 | State C Championship |
| 43-07 | Carson Krack | Whitefish (A) | 11 | State A Championship |
| 43-06.75 | Kohbe Smith | Dawson Co./Glendive (A) | 11 | State A Championship |
| 43-06 | Seth Amunrud | Manhattan Christian (C) | 12 | Midland Roundtable Top 10 |
| 43-03.25 | Porter Gibbs | Missoula Big Sky (AA) | 10 | State AA Championship |
| 43-03 | Jeff Lillard | Glacier (AA) | 12 | State AA Championship |
| 43-02.75 | Talen Reynolds | Loyola Sacred Heart (B) | 11 | State B Championship |
| 43-01.5 | Beau Kastner | Belgrade (AA) | 11 | State AA Championship |
| 43-00 | Bryce Umphrey | Saint Ignatius (B) | 12 | Lake County Meet |
| 42-11.5 | Carter White | Frenchtown (A) | 12 | State A Championship |
| 42-09 | Bridger Burrows | Laurel (A) | 9 | State A Championship |
| 42-08 | Jeremiah Saari | Helena Capital (AA) | 11 | State AA Championship |
| 42-08 | Oak Sullivan | Bozeman (AA) | 11 | Skor DeKam Invite |
| 42-07 | Joseph Fernandez | Great Falls CMR (AA) | 12 | The Falls Tuesday Trials |
| 42-05.5 | Trek Egan | Billings Senior (AA) | 10 | Eastern AA Divisional |
| 42-04.75 | Skeet Scharfe | Missoula Hellgate (AA) | 12 | Western AA Divisional |
| 42-04 | Jacob Dolezal | Flathead (AA) | 11 | Flathead-CMR Dual |
| 42-03 | Connor Durglo | Ronan (A) | 10 | Lake County Meet |
| 42-03 | Hunter Stevens | Jefferson/Boulder (B) | 10 | Gallatin Valley Invitational |
| 42-03 | Rowley Dupras | Missoula Big Sky (AA) | 12 | Flathead Triangular |
| 42-02.25 | Braden Ewing | Lustre Christian (C) | 12 | State C Championship |
| 42-01.5 | Trystin Chapel | Billings Senior (AA) | 11 | Eastern AA Divisional |
| 42-00.25 | AJ Foote | Lodge Grass (B) | | State B Championship |
| 42-00 | Conor Toivonen | Helena Capital (AA) | 10 | Helena Crosstown Meet |
| 42-00 | Tyler Moore | Great Falls CMR (AA) | 12 | The Falls Tuesday Trials |
| 41-10.75 | Gage Witt | Park City (B) | 11 | Harlo/Park City Invite |
| 41-09.75 | Ty Olsen | Glacier (AA) | 12 | Flathead-Glacier Dual |
| 41-09.5 | Stanley Stremick | Columbia Falls (A) | 10 | State A Championship |
| 41-09.5 | Ricky Williams | Noxon (C) | 10 | State C Championship |
| 41-09.5 | Jey Hofer | Lockwood (A) | 12 | Billings Invitational |
| 41-09 | Kaleb Schur | Great Falls (AA) | 11 | Eastern AA Divisional |
| 41-06.5 | Kale VanCampen | Havre (A) | 12 | Whitefish ARM Invitational |
| 41-06.5 | Carter Casavant | Cascade (C) | 12 | Cal Wearley Memorial |
| 41-05.75 | Winter Lonebear | Billings Skyview (AA) | 10 | Billings Public City Meet |
| 41-05.5 | Stephen Riley | Flathead (AA) | 11 | Archie Roe Invitational |
| 41-05.25 | Bridger Vogl | Belt (C) | 12 | Mustang Invitational |
| 41-05 | Caleb Brannan | Glacier (AA) | 11 | Kalispell Time Trials |
| 41-04.5 | Billy Carlson | Billings West (AA) | 12 | Eastern AA Divisional |
| 41-03 | Kaidrian Buls | Glacier (AA) | 12 | Archie Roe Invitational |
| 41-03 | Carter Bullins | Flathead (AA) | 11 | Flathead Triangular |
| 41-03 | Nicholas Bray | Belgrade (AA) | 10 | Eastern AA Divisional |
| 41-02.5 | Luke Strizich | Jefferson/Boulder (B) | 11 | 5B Districts |
| 41-02.5 | C.J. Hayhurst | Missoula Sentinel (AA) | 10 | Glacier-Sentinel Dual |
| 41-02 | Ty Leischner | Scobey (C) | 11 | State C Championship |
| 41-01.5 | Wyatt Hamilton | Park City (B) | 12 | Midland Roundtable Top 10 |
| 41-00.5 | Holden Stepper | Park City (B) | 12 | Harlo/Park City Invite |