2025 Big 12 Conference Leaders Fumbles Lost - Games in August/September Only through 01/09/2026
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Oklahoma State | 4 | 1 | 0 | 0.00 |
| 1 | Houston | 4 | 3 | 0 | 0.00 |
| 3 | Kansas | 5 | 9 | 2 | 22.22 |
| 4 | Texas Tech | 4 | 4 | 1 | 25.00 |
| 5 | Arizona State | 5 | 3 | 1 | 33.33 |
| 5 | BYU | 4 | 3 | 1 | 33.33 |
| 5 | Colorado | 5 | 3 | 1 | 33.33 |
| 5 | UCF | 4 | 6 | 2 | 33.33 |
| 9 | Utah | 5 | 8 | 3 | 37.50 |
| 10 | Arizona | 4 | 2 | 1 | 50.00 |
| 10 | TCU | 4 | 2 | 1 | 50.00 |
| 10 | Cincinnati | 4 | 4 | 2 | 50.00 |
| 13 | Kansas State | 5 | 7 | 4 | 57.14 |
| 14 | Iowa State | 5 | 5 | 3 | 60.00 |
| 15 | West Virginia | 5 | 8 | 5 | 62.50 |
| 16 | Baylor | 5 | 6 | 5 | 83.33 |