2018 Big Ten Conference Leaders Turnover Margin - Games vs. Non-Conference Teams Only through 01/07/2019
| Name | G | Fum. Gain | Int. Gain | Total Gain | Fum. Lost | Int. Lost | Total Lost | Margin | Margin/G | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Iowa | 4 | 4 | 4 | 8 | 1 | 4 | 5 | 3 | 0.75 |
| 1 | Ohio State | 4 | 3 | 2 | 5 | 1 | 1 | 2 | 3 | 0.75 |
| 1 | Indiana | 3 | 3 | 2 | 5 | 1 | 2 | 3 | 2 | 0.67 |
| 1 | Maryland | 3 | 1 | 4 | 5 | 1 | 2 | 3 | 2 | 0.67 |
| 1 | Northwestern | 4 | 6 | 2 | 8 | 1 | 5 | 6 | 2 | 0.50 |
| 1 | Michigan State | 4 | 0 | 5 | 5 | 1 | 4 | 5 | 0 | 0.00 |
| 1 | Michigan | 4 | 0 | 3 | 3 | 1 | 4 | 5 | -2 | -0.50 |
| 8 | Illinois | 3 | 1 | 6 | 7 | 2 | 0 | 2 | 5 | 1.67 |
| 8 | Wisconsin | 4 | 3 | 7 | 10 | 2 | 3 | 5 | 5 | 1.25 |
| 10 | Minnesota | 4 | 3 | 4 | 7 | 3 | 1 | 4 | 3 | 0.75 |
| 10 | Penn State | 4 | 2 | 2 | 4 | 3 | 2 | 5 | -1 | -0.25 |
| 10 | Nebraska | 3 | 2 | 3 | 5 | 3 | 5 | 8 | -3 | -1.00 |
| 13 | Purdue | 4 | 0 | 6 | 6 | 4 | 3 | 7 | -1 | -0.25 |
| 13 | Rutgers | 3 | 2 | 3 | 5 | 4 | 6 | 10 | -5 | -1.67 |