| Mark | Athlete | School | Year | Meet |
|---|
| 1:51.73 | Wilson Schmidt | Belgrade (AA) | 11 | Midland Roundtable Top 10 |
| 1:53.75 | Dylan Hill | Helena (AA) | 11 | Western AA Divisional |
| 1:53.79 | Auston Schellig | Joliet (B) | 11 | State B/C Championship |
| 1:53.97 | Kasen Kastner | Flathead (AA) | 12 | MCPS Invitational |
| 1:54.32 | Shaphan Hubner | Manhattan Christian (C) | 12 | Midland Roundtable Top 10 |
| 1:54.43 | Simon Douglas | Whitefish (A) | 12 | MCPS Invitational |
| 1:54.61 | Samuel Jagodzinski | Billings Central (A) | 12 | Midland Roundtable Top 10 |
| 1:54.65 | Evan Bennett | Hamilton (A) | 12 | Western A Divisional |
| 1:54.73 | Owen Thiel | Glacier (AA) | 11 | Western AA Divisional |
| 1:55.62 | Taylor Neil | Bozeman (AA) | 10 | Last Chance Qualifier |
| 1:55.74 | Reid Bartholomew | Gallatin (Bozeman) (AA) | 11 | Eastern AA Divisional |
| 1:55.82 | Finn Schretenthaler | Park/Livingston (A) | 11 | Eastern A Divisional |
| 1:55.82 | Henry Sund | Helena (AA) | 12 | Western AA Divisional |
| 1:56.09 | Christian Landers | Bozeman (AA) | 11 | Last Chance Qualifier |
| 1:56.34 | Taylor Wanner | Custer Co./Miles City (A) | 12 | Sidney Twilight Meet |
| 1:56.48 | Chandler Christensen | Billings Skyview (AA) | 12 | Midland Roundtable Top 10 |
| 1:56.72 | Colter Anderson | Sweet Grass Co./Big Timber (B) | 11 | State B/C Championship |
| 1:57.12 | Isaiah Cowan | Missoula Big Sky (AA) | 12 | Western AA Divisional |
| 1:57.63 | Jaden Silha | Dawson Co./Glendive (A) | 12 | Eastern A Divisional |
| 1:57.78 | Chris Jenemann | Helena (AA) | 12 | Western AA Divisional |
| 1:58.01 | Elliot Stimpson | Helena (AA) | 12 | Great Falls v Helena |
| 1:58.30 | Keaton Sample | Colstrip (B) | 11 | State B/C Championship |
| 1:58.48 | Brayden Lanser | Hamilton (A) | 11 | Western A Divisional |
| 1:58.61 | Tayen Edmo | Ronan (A) | 12 | Western A Divisional |
| 1:58.67 | River Racine | Browning (A) | 11 | Western A Divisional |
| 1:58.73 | Kyler Holinde | Glasgow (B) | 12 | State B/C Championship |
| 1:58.80 | Kye McAbee | Billings West (AA) | 11 | Senior/Gallatin/West Triangular |
| 1:58.86 | Emerson Hamma | Great Falls CMR (AA) | 11 | Capital/CMR Dual |
| 1:58.89 | Riley Kacher | Billings West (AA) | 11 | Eastern AA Divisional |
| 1:58.91 | Colter Fellin | Loyola Sacred Heart (B) | 12 | State B/C Championship |
| 1:59.18 | Milo Kauffman | Helena (AA) | 10 | Great Falls v Helena |
| 1:59.26 | Jake Matthews | Helena (AA) | 12 | Great Falls v Helena |
| 1:59.28 | Peyton Johnson | Cascade (C) | 10 | State B/C Championship |
| 1:59.36 | Ben Bird | Hardin (A) | 10 | Billings Central Invite |
| 1:59.44 | Axel Kowalski | Helena (AA) | 9 | Great Falls/Helena Dual |
| 1:59.45 | Camden Houchin | Butte (AA) | 11 | Big Sky/Butte Dual |
| 1:59.50 | Cole Sartori | Lincoln Co./Eureka (B) | 12 | State B/C Championship |
| 1:59.57 | Teigan Blomquist | Billings West (AA) | 11 | Midland Roundtable Top 10 |
| 1:59.61 | Ethan DeLeon | Billings Senior (AA) | 11 | Billings Central Invite |
| 1:59.67 | Jack Davidson | Corvallis (A) | 12 | Ravalli County Invitational |
| 1:59.68 | Taylor Doleac | Hamilton (A) | 11 | Western A Divisional |
| 1:59.86 | Jonah Njos | Custer Co./Miles City (A) | 11 | Sidney Twilight Meet |
| 2:00.02 | Preston McPherson | Whitefish (A) | 12 | Western A Divisional |
| 2:00.12 | Thatcher Schmidt | Belgrade (AA) | 11 | Last Chance Qualifier |
| 2:00.12 | Evan Colberg | Helena Capital (AA) | 12 | Russ Plicher Western Top 10 |
| 2:00.17 | Jacob Piapot | Ronan (A) | 12 | Western A Divisional |
| 2:00.24 | Xavier Bell | Savage (C) | | Sidney Invitational |
| 2:00.28 | David DiGiallonardo | Polson (A) | 11 | MCPS Invitational |
| 2:00.40 | Tyler Lane | Cascade (C) | 12 | State B/C Championship |
| 2:00.40 | Ashyr Tweet | Fairfield (B) | 10 | State B/C Championship |
| 2:00.64 | Noah Njos | Custer Co./Miles City (A) | 12 | Sidney Twilight Meet |
| 2:00.84 | Kayden Stewart | Hardin (A) | 11 | Eastern A Divisional |
| 2:01.15 | Charlie Gruber | Missoula Hellgate (AA) | 9 | Western AA Divisional |
| 2:01.24 | Sean Cotman | Bigfork (A) | 12 | Nelson-Thomas ABC Meet |
| 2:01.28 | Kiedis MacFarlane | Gallatin (Bozeman) (AA) | 12 | Belgrade Quad |
| 2:01.52 | Seth Dunster | Seeley-Swan (C) | 12 | State B/C Championship |
| 2:01.69 | Branlin Foote | Bozeman (AA) | 10 | Eastern AA Divisional |
| 2:01.70 | Sander Van Cleave | Missoula Sentinel (AA) | 10 | Missoula "Greg Rice" City Meet |
| 2:01.73 | Payne Brower | Columbus (B) | 12 | State B/C Championship |
| 2:01.75 | Shea Fredette | Alberton (C) | 11 | State B/C Championship |
| 2:01.77 | Walker Hoaglin | Valley Christian (C) | 10 | State B/C Championship |
| 2:01.77 | Conner Klumph | Missoula Sentinel (AA) | 12 | Western AA Divisional |
| 2:01.83 | Trent Lane | Cascade (C) | 10 | State B/C Championship |
| 2:01.93 | Kyler Harris | Florence-Carlton (B) | 12 | Western B/C Divisional |
| 2:01.95 | Kaiden Holmes | Bainville (C) | 11 | State B/C Championship |
| 2:02.00 | Jack Syverson | Glacier (AA) | 12 | Western AA Divisional |
| 2:02.07 | Miles Joseph Miller | Missoula Hellgate (AA) | 10 | Western AA Divisional |
| 2:02.12 | Matthew Tobiason | Loyola Sacred Heart (B) | 12 | State B/C Championship |
| 2:02.36 | Grey Piseno | Billings Central (A) | 11 | MC John Polich Invite |
| 2:02.45 | Eamon Fitzgerald | Missoula Hellgate (AA) | 12 | Western AA Divisional |
| 2:02.55 | Owen Powell | Bozeman (AA) | 10 | Skyview/Bozeman/Belgrade Tri |
| 2:02.62 | Jacob Christensen | Billings Skyview (AA) | 10 | Eastern AA Divisional |
| 2:02.63 | Mekhi Ladson | Billings Skyview (AA) | | Dan Hansen Invitational (WY) |
| 2:02.69 | Gabriel Rock | Billings Skyview (AA) | 10 | Eastern AA Divisional |
| 2:02.74 | CJ Pijanowski | Florence-Carlton (B) | 12 | Western B/C Divisional |
| 2:02.81 | Cole Rasmuson | Bozeman (AA) | | Billings Invite |
| 2:02.90 | Nolan Morris | Troy (B) | 11 | State B/C Championship |
| 2:02.92 | Conrad Schruth | Great Falls (AA) | 12 | Great Falls/Helena Dual |
| 2:02.94 | Cameron Guelde | Bozeman (AA) | | Billings Invite |
| 2:02.98 | Austyn Jardine | Billings Central (A) | 11 | Eastern A Divisional |
| 2:02.99 | Jude Sparkman | Glacier (AA) | 11 | Western AA Divisional |
| 2:03.05 | Hank Strasser | Manhattan (B) | 12 | 5B/12C District Meet |
| 2:03.17 | William Normandeau | Ronan (A) | | Lake County |
| 2:03.19 | Isaiah Hudson | Missoula Hellgate (AA) | 11 | Western AA Divisional |
| 2:03.47 | Jayvon Big Knife | Harlem (B) | 10 | State B/C Championship |
| 2:03.49 | Charles Clater | Missoula Big Sky (AA) | 12 | Western AA Divisional |
| 2:03.55 | Braden Anderson | Corvallis (A) | 9 | Nelson-Thomas ABC Meet |
| 2:03.57 | Cooper Streit | Chester-Joplin-Inverness (C) | 11 | Northern C Divisional |
| 2:03.64 | Prestyn Klatt | Lustre Christian (C) | 10 | Eastern C Divisional |
| 2:03.75 | Layne Niemeyer | Billings Skyview (AA) | 12 | Billings City Meet |
| 2:03.82 | Cavan Visser | Manhattan Christian (C) | 12 | Western B/C Divisional |