2025 Big 12 Conference Leaders Fumbles Lost - Games vs. Conference Teams Only through 12/06/2025
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | West Virginia | 9 | 13 | 3 | 23.08 |
| 2 | Iowa State | 9 | 9 | 4 | 44.44 |
| 2 | Houston | 9 | 13 | 4 | 30.77 |
| 2 | Kansas | 9 | 13 | 4 | 30.77 |
| 5 | Cincinnati | 9 | 7 | 5 | 71.43 |
| 5 | Arizona | 10 | 9 | 5 | 55.56 |
| 5 | Colorado | 9 | 11 | 5 | 45.45 |
| 5 | TCU | 9 | 11 | 5 | 45.45 |
| 5 | Texas Tech | 10 | 12 | 5 | 41.67 |
| 5 | UCF | 9 | 17 | 5 | 29.41 |
| 11 | Utah | 9 | 13 | 6 | 46.15 |
| 12 | Kansas State | 10 | 13 | 7 | 53.85 |
| 12 | BYU | 10 | 14 | 7 | 50.00 |
| 12 | Oklahoma State | 9 | 20 | 7 | 35.00 |
| 15 | Baylor | 9 | 12 | 10 | 83.33 |
| 15 | Arizona State | 9 | 18 | 10 | 55.56 |