2025 Big 12 Conference Leaders Fumbles Lost - Games in August/September Only through 09/12/2025
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Oklahoma State | 2 | 0 | 0 | 0 |
| 1 | TCU | 1 | 0 | 0 | 0 |
| 3 | Arizona State | 2 | 1 | 0 | 0.00 |
| 4 | Colorado | 3 | 2 | 0 | 0.00 |
| 4 | Utah | 2 | 2 | 0 | 0.00 |
| 4 | Arizona | 3 | 2 | 1 | 50.00 |
| 4 | BYU | 2 | 2 | 1 | 50.00 |
| 4 | Baylor | 2 | 2 | 2 | 100.00 |
| 4 | Cincinnati | 2 | 2 | 2 | 100.00 |
| 10 | Houston | 3 | 3 | 0 | 0.00 |
| 10 | UCF | 2 | 3 | 1 | 33.33 |
| 10 | Texas Tech | 2 | 3 | 1 | 33.33 |
| 13 | Kansas | 3 | 4 | 1 | 25.00 |
| 13 | Iowa State | 3 | 4 | 3 | 75.00 |
| 15 | Kansas State | 4 | 5 | 4 | 80.00 |
| 15 | West Virginia | 2 | 5 | 4 | 80.00 |