2018 Big 12 Conference Leaders Fumbles Lost - Games vs. FBS Power 5 Conference Teams Only through 01/07/2019
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Texas | 13 | 15 | 4 | 26.67 |
| 2 | Baylor | 11 | 19 | 5 | 26.32 |
| 3 | Oklahoma | 12 | 9 | 6 | 66.67 |
| 3 | Kansas State | 10 | 11 | 6 | 54.55 |
| 3 | Texas Tech | 10 | 11 | 6 | 54.55 |
| 3 | Kansas | 10 | 13 | 6 | 46.15 |
| 7 | Iowa State | 11 | 10 | 7 | 70.00 |
| 7 | West Virginia | 11 | 12 | 7 | 58.33 |
| 7 | Oklahoma State | 10 | 15 | 7 | 46.67 |
| 10 | TCU | 11 | 22 | 10 | 45.45 |