2018 Big 12 Conference Leaders Fumbles Lost - Games vs. Conference Teams Only through 01/07/2019
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Iowa State | 9 | 8 | 5 | 62.50 |
| 2 | Oklahoma | 10 | 9 | 6 | 66.67 |
| 3 | Texas | 10 | 11 | 2 | 18.18 |
| 3 | Kansas State | 9 | 11 | 6 | 54.55 |
| 3 | Texas Tech | 9 | 11 | 6 | 54.55 |
| 3 | West Virginia | 9 | 11 | 6 | 54.55 |
| 7 | Kansas | 9 | 12 | 6 | 50.00 |
| 8 | Oklahoma State | 9 | 14 | 7 | 50.00 |
| 9 | Baylor | 9 | 16 | 4 | 25.00 |
| 10 | TCU | 9 | 21 | 9 | 42.86 |