| Mark | Athlete | School | Year | Meet |
|---|
| 45.31 | Ali Doyle | Turner (C) | 10 | Northern C Divisional |
| 46.76 | Kate Nasner | Circle (C) | 8 | Eastern C Divisional |
| 46.87 | TJ Chirrick | Roberts (C) | 12 | Al Walker Memorial Meet |
| 47.12 | Bridget Reed | Turner (C) | 11 | 9C District Meet |
| 47.36 | Mady Willis | Scobey (C) | 12 | Eastern C Divisional |
| 47.56 | Brie Mattson | Chester-Joplin-Inverness (C) | 10 | 9C District Meet |
| 48.01 | Maggie Darr | Gardiner (C) | 11 | Western B/C Divisional |
| 48.17 | Bella Triemstra | Manhattan Christian (C) | 12 | Midland Roundtable Top 10 |
| 48.75 | Mia Smith | Denton-Geyser-Stanford (C) | 9 | Northern C Divisional |
| 48.78 | Danica Yakos | Drummond (C) | 9 | 6B/13C District Meet |