2021 Big Ten Conference Leaders Turnover Margin - Games in October Only through 01/10/2022
| Name | G | Fum. Gain | Int. Gain | Total Gain | Fum. Lost | Int. Lost | Total Lost | Margin | Margin/G | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ohio State | 4 | 2 | 6 | 8 | 1 | 0 | 1 | 7 | 1.75 |
| 2 | Iowa | 4 | 2 | 10 | 12 | 3 | 5 | 8 | 4 | 1.00 |
| 3 | Michigan | 4 | 4 | 5 | 9 | 3 | 3 | 6 | 3 | 0.75 |
| 4 | Purdue | 4 | 2 | 8 | 10 | 4 | 4 | 8 | 2 | 0.50 |
| 4 | Wisconsin | 5 | 6 | 4 | 10 | 6 | 2 | 8 | 2 | 0.40 |
| 6 | Michigan State | 4 | 4 | 3 | 7 | 1 | 5 | 6 | 1 | 0.25 |
| 6 | Minnesota | 4 | 3 | 1 | 4 | 0 | 3 | 3 | 1 | 0.25 |
| 8 | Northwestern | 4 | 3 | 1 | 4 | 3 | 1 | 4 | 0 | 0.00 |
| 8 | Illinois | 4 | 2 | 2 | 4 | 3 | 1 | 4 | 0 | 0.00 |
| 10 | Penn State | 4 | 3 | 4 | 7 | 2 | 6 | 8 | -1 | -0.25 |
| 11 | Nebraska | 4 | 1 | 3 | 4 | 1 | 5 | 6 | -2 | -0.50 |
| 11 | Indiana | 4 | 0 | 3 | 3 | 1 | 4 | 5 | -2 | -0.50 |
| 13 | Rutgers | 4 | 1 | 1 | 2 | 2 | 3 | 5 | -3 | -0.75 |
| 14 | Maryland | 4 | 0 | 0 | 0 | 2 | 8 | 10 | -10 | -2.50 |