2018 Big Ten Conference Leaders Turnover Margin - Games in December/January Only through 01/07/2019
| Name | G | Fum. Gain | Int. Gain | Total Gain | Fum. Lost | Int. Lost | Total Lost | Margin | Margin/G | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Wisconsin | 1 | 1 | 4 | 5 | 0 | 1 | 1 | 4 | 4.00 |
| 1 | Minnesota | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1.00 |
| 1 | Michigan State | 1 | 0 | 0 | 0 | 0 | 1 | 1 | -1 | -1.00 |
| 1 | Michigan | 1 | 0 | 0 | 0 | 0 | 2 | 2 | -2 | -2.00 |
| 1 | Purdue | 1 | 0 | 0 | 0 | 0 | 2 | 2 | -2 | -2.00 |
| 6 | Northwestern | 2 | 5 | 3 | 8 | 1 | 3 | 4 | 4 | 2.00 |
| 6 | Iowa | 1 | 1 | 2 | 3 | 1 | 1 | 2 | 1 | 1.00 |
| 6 | Ohio State | 2 | 1 | 2 | 3 | 1 | 1 | 2 | 1 | 0.50 |
| 6 | Penn State | 1 | 0 | 0 | 0 | 1 | 1 | 2 | -2 | -2.00 |