| Mark | Athlete | School | Year | Meet |
|---|
| 1:52.69 | Ryan Harrington | Great Falls (AA) | 12 | State AA Championship |
| 1:53.07 | Wilson Schmidt | Belgrade (AA) | 10 | State AA Championship |
| 1:53.20 | Nathan Neil | Bozeman (AA) | 12 | Bozeman Crosstown |
| 1:54.36 | Ashtyn Rask | Great Falls (AA) | 12 | State AA Championship |
| 1:54.42 | Jack Jensen | Bigfork (A) | 12 | State A Championship |
| 1:55.12 | Kiedis MacFarlane | Gallatin (Bozeman) (AA) | 11 | State AA Championship |
| 1:55.31 | Evan Bennett | Hamilton (A) | 11 | MCPS Invitational |
| 1:55.46 | Dylan Hill | Helena (AA) | 10 | State AA Championship |
| 1:55.89 | Simon Douglas | Whitefish (A) | 11 | State A Championship |
| 1:55.90 | Samuel Jagodzinski | Billings Central (A) | 11 | Eastern A Divisional |
| 1:56.00 | Isaiah Cowan | Missoula Big Sky (AA) | 11 | MCPS Invitational |
| 1:56.16 | Christian Landers | Bozeman (AA) | 10 | State AA Championship |
| 1:56.31 | Reid Bartholomew | Gallatin (Bozeman) (AA) | 10 | State AA Championship |
| 1:56.43 | Oren Arthun | Manhattan Christian (C) | 12 | State C Championship |
| 1:56.58 | Ridley Key | Missoula Hellgate (AA) | 11 | State AA Championship |
| 1:56.72 | Henry Sund | Helena (AA) | 11 | State AA Championship |
| 1:56.93 | Shaphan Hubner | Manhattan Christian (C) | 11 | State C Championship |
| 1:56.96 | Caleb Tomac | Havre (A) | 12 | Nelson-Thomas ABC Meet |
| 1:57.06 | Gage Gunther | Custer Co./Miles City (A) | 12 | State A Championship |
| 1:57.18 | Jaden Shila | Dawson Co./Glendive (A) | 11 | State A Championship |
| 1:57.37 | Daniel Johnson | Bozeman (AA) | 12 | State AA Championship |
| 1:57.44 | Quinn Newman | Missoula Sentinel (AA) | 12 | Sentinel Triangular 4/11 |
| 1:57.49 | Finn Schretenthaler | Park/Livingston (A) | 10 | Eastern A Divisional |
| 1:57.54 | Kyler Holinde | Glasgow (B) | 11 | State B Championship |
| 1:57.79 | Peyton Summers | Wolf Point (B) | 12 | 2B Districts |
| 1:58.00 | Kasen Kastner | Flathead (AA) | 11 | MCPS Invitational |
| 1:58.04 | Dominic Hurlbert | Jefferson/Boulder (B) | 11 | Southern B Divisional |
| 1:58.29 | Chandler Christensen | Billings Skyview (AA) | 11 | State AA Championship |
| 1:58.38 | Aaron French | Jefferson/Boulder (B) | 12 | Corvallis Quad |
| 1:58.51 | Emerson Hamma | Billings Skyview (AA) | 10 | State AA Championship |
| 1:58.72 | Aidan Brown | Belgrade (AA) | 12 | State AA Championship |
| 1:58.78 | Jerdan Crawford | Browning (A) | 12 | Archie Roe Invitational |
| 1:58.86 | Ben Bird | Hardin (A) | 9 | Billings Invite |
| 1:58.89 | Owen Thiel | Glacier (AA) | 10 | Archie Roe Invitational |
| 1:58.91 | Chris Jenemann | Helena (AA) | 11 | State AA Championship |
| 1:59.14 | Ryan Doyle | Turner (C) | 12 | State C Championship |
| 1:59.40 | Hayden Hollow | Charlo (C) | 12 | State C Championship |
| 1:59.59 | Kye Mcabee | Billings West (AA) | 10 | State AA Championship |
| 1:59.62 | Ryan Maus | Helena (AA) | 12 | Helena Triangular |
| 1:59.71 | James Greene | Cut Bank (B) | 12 | State B Championship |
| 1:59.82 | Preston Iron Heart | Browning (A) | 12 | State A Championship |
| 1:59.88 | Tyler Inabnit | Missoula Sentinel (AA) | 11 | Sentinel Triangular 4/30 |
| 1:59.95 | David DiGiallonardo | Polson (A) | 10 | Western A Divisional |
| 2:00.04 | Jake Matthews | Helena (AA) | 11 | Russ Plicher Western Top 10 |
| 2:00.14 | Brayden Lanser | Hamilton (A) | 10 | Helena Triangular |
| 2:00.15 | Jeremy Posdon | Bozeman (AA) | 12 | Last Chance Invite |
| 2:00.35 | Thomas Oylear | Powder River Co./Broadus (C) | 12 | State C Championship |
| 2:00.52 | Milo Kauffman | Helena (AA) | 9 | Helena Triangular |
| 2:00.66 | Elliot Stimpson | Helena (AA) | 11 | Helena Triangular |
| 2:00.66 | Cohen Kastelitz | Glacier (AA) | 12 | State AA Championship |
| 2:00.90 | Auston Schellig | Joliet (B) | 10 | State B Championship |
| 2:00.96 | Tayen Edmo | Ronan (A) | 11 | Lake County Meet |
| 2:01.10 | Axel Butler | Gallatin (Bozeman) (AA) | 10 | Last Chance Invite |
| 2:01.13 | Ben Shaules | Missoula Sentinel (AA) | 11 | Swede Dahlberg Invitational |
| 2:01.20 | Callahan Waters | Bozeman (AA) | 10 | Billings/Bozeman Quad |
| 2:01.24 | Judah McConville | Gallatin (Bozeman) (AA) | 12 | Last Chance Invite |
| 2:01.30 | Mason Moler | Billings West (AA) | 12 | Billings Invitational |
| 2:01.31 | Evan Colberg | Helena Capital (AA) | 11 | Helena Crosstown Meet |
| 2:01.49 | John Spinti | Great Falls (AA) | 12 | Great Falls Triangular |
| 2:01.60 | Taylor Neil | Bozeman (AA) | 9 | Bozeman Crosstown |
| 2:01.83 | Nolan Morris | Troy (B) | 10 | Western B Divisional |
| 2:01.84 | Matthew Tobiason | Loyola Sacred Heart (B) | 11 | Western B Divisional |
| 2:01.86 | Anthony Ackerman | Dawson Co./Glendive (A) | 12 | Eastern A Divisional |
| 2:01.97 | Jack Syverson | Glacier (AA) | 11 | Glacier-Columbia Falls Dual |
| 2:01.99 | Colter Anderson | Sweet Grass Co./Big Timber (B) | 10 | Southern B Divisional |
| 2:02.16 | Zach Downing | Park City (B) | 12 | State B Championship |
| 2:02.21 | Taylor Doleac | Hamilton (A) | 10 | Columbia Falls Iceberg Invitational |
| 2:02.23 | Payne Brower | Columbus (B) | 11 | Red Lodge Invitational |
| 2:02.39 | Brennan Bowman | Billings West (AA) | 12 | Billings Invite |
| 2:02.41 | Hayden Smith | Charlo (C) | 12 | 14C Districts |
| 2:02.45 | Scott Parke | Drummond (C) | 12 | State C Championship |
| 2:02.53 | Clayton Jassen | Belt (C) | 12 | State C Championship |
| 2:02.75 | Quinn Clark | Columbia Falls (A) | 12 | Western A Divisional |
| 2:02.78 | Gabe Schons | Red Lodge (B) | 11 | Gold Strike Invitational |
| 2:02.89 | Paul Dannenberg | Billings West (AA) | 11 | Swede Dahlberg Invitational |
| 2:02.95 | Beck Whicker | Custer Co./Miles City (A) | 11 | Glendive Shriners Invitational |
| 2:02.99 | Kougar Kappel | Red Lodge (B) | 10 | Red Lodge Invitational |
| 2:03.01 | Mekhi Ladson | Lockwood (A) | 10 | Eastern A Divisional |
| 2:03.05 | Jack Davidson | Corvallis (A) | 11 | Ravalli County Invitational |
| 2:03.32 | Noah Kimball | Loyola Sacred Heart (B) | 12 | Western B Divisional |
| 2:03.43 | Timothy Schmidt | Lincoln Co./Eureka (B) | 10 | Western B Divisional |
| 2:03.56 | Lucas Keith | Billings West (AA) | 10 | Billings West Meet 4/23 |
| 2:03.63 | Keaton Sample | Colstrip (B) | 10 | State B Championship |
| 2:03.65 | Ethan Amick | Whitefish (A) | 11 | Archie Roe Invitational |
| 2:03.67 | Wilson Derry | Missoula Hellgate (AA) | 12 | Western AA Divisional |
| 2:03.75 | McKenon Boyd | Jefferson/Boulder (B) | 10 | Corvallis Quad |
| 2:03.98 | Eli Heacock | Powder River Co./Broadus (C) | 12 | State C Championship |
| 2:03.98 | Miles Halvorsen | Bozeman (AA) | 10 | Swede Dahlberg Invitational |