2018 Big 12 Conference Leaders Fumbles Lost - Games vs. FBS Teams With Non-Winning Record Only through 01/07/2019
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Baylor | 5 | 8 | 1 | 12.50 |
| 2 | TCU | 4 | 13 | 4 | 30.77 |
| 3 | Oklahoma | 5 | 3 | 1 | 33.33 |
| 4 | Texas | 6 | 7 | 3 | 42.86 |
| 5 | Kansas State | 3 | 4 | 2 | 50.00 |
| 5 | Oklahoma State | 4 | 4 | 2 | 50.00 |
| 5 | Kansas | 4 | 6 | 3 | 50.00 |
| 5 | Texas Tech | 3 | 8 | 4 | 50.00 |
| 9 | West Virginia | 4 | 4 | 3 | 75.00 |
| 10 | Iowa State | 4 | 4 | 4 | 100.00 |