2018 Big Ten Conference Leaders Turnover Margin - Games in November Only through 01/07/2019
| Name | G | Fum. Gain | Int. Gain | Total Gain | Fum. Lost | Int. Lost | Total Lost | Margin | Margin/G | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Northwestern | 4 | 4 | 3 | 7 | 0 | 2 | 2 | 5 | 1.25 |
| 2 | Michigan | 4 | 4 | 4 | 8 | 0 | 3 | 3 | 5 | 1.25 |
| 3 | Iowa | 4 | 1 | 8 | 9 | 3 | 1 | 4 | 5 | 1.25 |
| 3 | Indiana | 3 | 3 | 3 | 6 | 1 | 3 | 4 | 2 | 0.67 |
| 5 | Purdue | 4 | 2 | 2 | 4 | 2 | 3 | 5 | -1 | -0.25 |
| 6 | Nebraska | 4 | 6 | 4 | 10 | 4 | 2 | 6 | 4 | 1.00 |
| 6 | Minnesota | 4 | 4 | 4 | 8 | 3 | 3 | 6 | 2 | 0.50 |
| 8 | Maryland | 4 | 3 | 4 | 7 | 6 | 1 | 7 | 0 | 0.00 |
| 9 | Ohio State | 4 | 4 | 3 | 7 | 6 | 2 | 8 | -1 | -0.25 |
| 9 | Penn State | 4 | 3 | 4 | 7 | 5 | 3 | 8 | -1 | -0.25 |
| 9 | Rutgers | 4 | 1 | 5 | 6 | 3 | 5 | 8 | -2 | -0.50 |
| 12 | Michigan State | 4 | 6 | 2 | 8 | 3 | 6 | 9 | -1 | -0.25 |
| 13 | Wisconsin | 4 | 3 | 0 | 3 | 4 | 7 | 11 | -8 | -2.00 |
| 14 | Illinois | 4 | 3 | 2 | 5 | 6 | 7 | 13 | -8 | -2.00 |