| Mark | Athlete | School | Year | Meet |
|---|
| 1:54.42 | Jack Jensen | Bigfork (A) | 12 | State A Championship |
| 1:55.31 | Evan Bennett | Hamilton (A) | 11 | MCPS Invitational |
| 1:55.89 | Simon Douglas | Whitefish (A) | 11 | State A Championship |
| 1:55.90 | Samuel Jagodzinski | Billings Central (A) | 11 | Eastern A Divisional |
| 1:56.96 | 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 |
| 1:57.49 | Finn Schretenthaler | Park/Livingston (A) | 10 | Eastern A Divisional |
| 1:58.78 | Jerdan Crawford | Browning (A) | 12 | Archie Roe Invitational |
| 1:58.86 | Ben Bird | Hardin (A) | 9 | Billings Invite |
| 1:59.82 | Preston Iron Heart | Browning (A) | 12 | State A Championship |
| 1:59.95 | David DiGiallonardo | Polson (A) | 10 | Western A Divisional |
| 2:00.14 | Brayden Lanser | Hamilton (A) | 10 | Helena Triangular |
| 2:00.96 | Tayen Edmo | Ronan (A) | 11 | Lake County Meet |
| 2:01.86 | Anthony Ackerman | Dawson Co./Glendive (A) | 12 | Eastern A Divisional |
| 2:02.21 | Taylor Doleac | Hamilton (A) | 10 | Columbia Falls Iceberg Invitational |
| 2:02.75 | Quinn Clark | Columbia Falls (A) | 12 | Western A Divisional |
| 2:02.95 | Beck Whicker | Custer Co./Miles City (A) | 11 | Glendive Shriners Invitational |
| 2:03.01 | Mekhi Ladson | Lockwood (A) | 10 | Eastern A Divisional |
| 2:03.05 | Jack Davidson | Corvallis (A) | 11 | Ravalli County Invitational |
| 2:03.65 | Ethan Amick | Whitefish (A) | 11 | Archie Roe Invitational |