| Mark | Athlete | School | Year | Meet |
|---|
| 1:51.31 | Wilson Schmidt | Belgrade (AA) | 9 | State AA Championship |
| 1:51.82 | Weston Brown | Bozeman (AA) | 12 | State AA Championship |
| 1:52.68 | Nathan Neil | Bozeman (AA) | 11 | State AA Championship |
| 1:53.28 | Henry Ballinger | Helena (AA) | 12 | State AA Championship |
| 1:54.30 | Keagen Crosby | Missoula Sentinel (AA) | 12 | State AA Championship |
| 1:54.41 | Daniel Wiltse | Missoula Hellgate (AA) | 12 | State AA Championship |
| 1:55.05 | Finneas Colescott | Missoula Hellgate (AA) | 12 | Western AA Divisional |
| 1:55.80 | Aaron French | Helena (AA) | 11 | Russ Plicher Top 10 |
| 1:56.87 | Evan Bennett | Hamilton (A) | 10 | MCPS Invite |
| 1:56.90 | Shaphan Hubner | Manhattan Christian (C) | 10 | Western C Divisional |
| 1:58.10 | Jack Jensen | Bigfork (A) | 11 | State B Championship |
| 1:58.39 | Wyatt Ehredt | Frenchtown (A) | 12 | Western A Divisional |
| 1:58.43 | Caleb Tomac | Havre (A) | 11 | Eastern A Divisional |
| 1:58.51 | Tyler Avery | Glacier (AA) | 12 | State AA Championship |
| 1:58.51 | Ryan Harrington | Great Falls (AA) | 11 | CMR-Bozeman Dual |
| 1:58.67 | Oren Arthun | Manhattan Christian (C) | 11 | Western C Divisional |
| 1:58.67 | Ridley Key | Missoula Hellgate (AA) | 10 | State AA Championship |
| 1:58.70 | Carson Steckelberg | Gallatin (Bozeman) (AA) | 12 | Bozeman Triangular |
| 1:58.73 | Garrett Dahlke | Gallatin (Bozeman) (AA) | 12 | Bozeman Triangular |
| 1:58.84 | Derek Criddle | Corvallis (A) | 11 | Nelson-Thomas ABC Meet |
| 1:59.05 | Kasen Kastner | Flathead (AA) | 10 | State AA Championship |
| 1:59.33 | Jaxon Straus | Billings West (AA) | 12 | West-Skyview Dual |
| 1:59.37 | Brody Henry | Havre (A) | 12 | Eastern A Divisional |
| 1:59.45 | Samuel Jagodzinski | Billings Central (A) | 10 | Eastern A Divisional |
| 1:59.51 | Hunter Bailey | Baker (B) | 11 | State B Championship |
| 1:59.70 | Ryan Doyle | Turner (C) | 11 | State C Championship |
| 1:59.79 | Isaiah Cowan | Missoula Big Sky (AA) | 10 | Russ Plicher Top 10 |
| 1:59.79 | Scott Parke | Drummond (C) | 11 | State C Championship |
| 1:59.79 | Ben Shaules | Missoula Sentinel (AA) | 10 | State AA Championship |
| 2:00.10 | Gavin Garrison | Beaverhead Co./Dillon (A) | 12 | Western A Divisional |
| 2:00.28 | Beck Whicker | Custer Co./Miles City (A) | 10 | Eastern A Divisional |
| 2:00.31 | Andrew Pellandini | Billings Senior (AA) | 10 | Billings Public City Meet |
| 2:00.32 | Aidan Brown | Belgrade (AA) | 11 | Eastern AA Divisional |
| 2:00.57 | Mason Moler | Billings West (AA) | 11 | Billings Public City Meet |
| 2:00.59 | Brayden Lanser | Hamilton (A) | 9 | Russ Plicher Top 10 |
| 2:00.66 | Gage Gunther | Custer Co./Miles City (A) | 11 | State A Championship |
| 2:00.75 | Andrew Durgan | Park/Livingston (A) | 12 | Eastern A Divisional |
| 2:00.85 | Jaden Silha | Dawson Co./Glendive (A) | 10 | Eastern A Divisional |
| 2:00.86 | Garret Bodily | Great Falls CMR (AA) | 11 | Eastern AA Divisional |
| 2:00.88 | Nate Ingelfinger | Whitefish (A) | 12 | Archie Roe Invitational |
| 2:00.90 | Ben Bird | Hardin (A) | 9 | Eastern A Divisional |
| 2:01.38 | Tyler Inabnit | Missoula Sentinel (AA) | 10 | Glacier-Sentinel Dual |
| 2:01.47 | Reid Malcolm | Park/Livingston (A) | 12 | Eastern A Divisional |
| 2:01.47 | Ashtyn Rask | Great Falls (AA) | 11 | Eastern AA Divisional |
| 2:01.74 | Jacob Stewart | Red Lodge (B) | 12 | State B Championship |
| 2:01.85 | Christian Landers | Bozeman (AA) | 9 | Eastern AA Divisional |
| 2:02.10 | Clayton Jassen | Belt (C) | 11 | Northern C Divisional |
| 2:02.31 | Bryce Williams | Joliet (B) | 12 | State B Championship |
| 2:02.35 | Ian Flynn | Helena Capital (AA) | 12 | MCPS Invite |
| 2:02.38 | Nico Petrini | Missoula Hellgate (AA) | 11 | Western AA Divisional |
| 2:02.40 | Wilson Derry | Missoula Hellgate (AA) | 11 | Western AA Divisional |
| 2:02.48 | Hayden Hollow | Charlo (C) | 11 | Western C Divisional |
| 2:02.72 | Kyler Harris | Florence-Carlton (B) | 10 | 6B Districts |
| 2:02.76 | Peyton Summers | Wolf Point (B) | 11 | Mustang Invitational |
| 2:02.81 | Jeremy Posdon | Bozeman (AA) | 11 | Eastern AA Divisional |
| 2:02.83 | Eli Heacock | Powder River Co./Broadus (C) | 11 | State C Championship |
| 2:02.95 | Zach Downing | Park City (B) | 11 | State C Championship |
| 2:02.97 | Gavin Hagberg | Corvallis (A) | 12 | Western A Divisional |
| 2:03.03 | James Greene | Cut Bank (B) | 11 | State B Championship |
| 2:03.37 | Kyler Holinde | Glasgow (B) | 10 | Northern B Divisional |
| 2:03.43 | Eli Taylor | Hamilton (A) | 12 | Western A Divisional |
| 2:03.49 | Chandler Christensen | Billings Skyview (AA) | 10 | Midland Roundtable Top 10 |
| 2:03.55 | Paul Dannenberg | Billings West (AA) | 10 | Eastern AA Divisional |
| 2:03.72 | Elias Stops at Pretty Places | Hardin (A) | 12 | Eastern A Divisional |
| 2:03.73 | Thomas Oylear | Powder River Co./Broadus (C) | 11 | State C Championship |
| 2:03.84 | Elias Wight | Billings Senior (AA) | 10 | Eastern AA Divisional |
| 2:03.93 | Reed Larsen | Glasgow (B) | 12 | State B Championship |
| 2:03.93 | Greyson Piseno | Billings Central (A) | 9 | Eastern A Divisional |
| 2:03.94 | Lucas Keith | Billings West (AA) | 9 | Billings Public City Meet |
| 2:03.95 | Jerdan Crawford | Browning (A) | 11 | Western A Divisional |
| 2:03.98 | Mason Genovese | Whitefish (A) | 11 | Western A Divisional |