2025 Big 12 Conference Leaders Fumbles Lost - Games Won Only through 10/04/2025
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Oklahoma State | 1 | 0 | 0 | 0 |
| 1 | Houston | 4 | 3 | 0 | 0.00 |
| 1 | TCU | 4 | 3 | 0 | 0.00 |
| 4 | Colorado | 2 | 1 | 1 | 100.00 |
| 4 | Arizona State | 4 | 3 | 1 | 33.33 |
| 4 | UCF | 3 | 4 | 1 | 25.00 |
| 4 | Kansas State | 2 | 4 | 1 | 25.00 |
| 4 | Kansas | 4 | 4 | 1 | 25.00 |
| 4 | Utah | 4 | 5 | 1 | 20.00 |
| 10 | Cincinnati | 4 | 4 | 2 | 50.00 |
| 10 | Arizona | 4 | 5 | 2 | 40.00 |
| 10 | Texas Tech | 5 | 6 | 2 | 33.33 |
| 13 | Iowa State | 5 | 5 | 3 | 60.00 |
| 13 | BYU | 5 | 6 | 3 | 50.00 |
| 15 | Baylor | 4 | 5 | 4 | 80.00 |
| 15 | West Virginia | 2 | 6 | 4 | 66.67 |