| Mark | Athlete | School | Year | Meet |
|---|
| 25.88 | Kellan Wahl | Billings Central (A) | 10 | State A |
| 25.98 | Lauren Schulz | Whitefish (A) | 12 | State A |
| 26.00 | Tylia DeJohn | Beaverhead Co./Dillon (A) | 11 | MCPS Invitational |
| 26.28 | Kinsley Barney | Ronan (A) | 11 | Nelson-Thomas ABC Meet |
| 26.71 | Loy Waid | Havre (A) | 10 | State A |
| 26.72 | Ashton Lewis | Stevensville (A) | 10 | State A |
| 26.77 | Matayah Yellowmule | Hardin (A) | 9 | MHSA State Track Class A and C |
| 26.90 | Madalen Shipman | Beaverhead Co./Dillon (A) | 10 | State A |
| 26.97 | Jessalyn Chvilicek | Havre (A) | 11 | Gallatin Valley Invitational |
| 27.04 | Faith Rebich | Frenchtown (A) | 11 | Frenchtown Quad |
| 27.06 | Kaitlyn Keithley | Sidney (A) | 12 | Jock Stop Invitational |
| 27.10 | Rileigh McGree | Butte Central (A) | 9 | Western Top 10 Meet |