2018 Big 12 Conference Leaders Fumbles Lost - Games vs. Unranked Teams Only (AP Poll) through 01/07/2019
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Baylor | 10 | 15 | 4 | 26.67 |
| 2 | TCU | 9 | 20 | 7 | 35.00 |
| 3 | Texas | 10 | 11 | 4 | 36.36 |
| 4 | Oklahoma | 9 | 5 | 2 | 40.00 |
| 5 | Kansas | 9 | 14 | 6 | 42.86 |
| 5 | Oklahoma State | 9 | 14 | 6 | 42.86 |
| 7 | West Virginia | 9 | 11 | 5 | 45.45 |
| 8 | Texas Tech | 9 | 9 | 5 | 55.56 |
| 9 | Kansas State | 9 | 13 | 8 | 61.54 |
| 10 | Iowa State | 8 | 8 | 7 | 87.50 |