2021 Big Ten Conference Leaders Turnover Margin - Games in August/September Only through 01/10/2022
| Name | G | Fum. Gain | Int. Gain | Total Gain | Fum. Lost | Int. Lost | Total Lost | Margin | Margin/G | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Penn State | 4 | 2 | 5 | 7 | 0 | 2 | 2 | 5 | 1.25 |
| 1 | Michigan | 4 | 2 | 1 | 3 | 0 | 0 | 0 | 3 | 0.75 |
| 1 | Purdue | 4 | 0 | 2 | 2 | 0 | 5 | 5 | -3 | -0.75 |
| 4 | Rutgers | 4 | 5 | 3 | 8 | 1 | 0 | 1 | 7 | 1.75 |
| 4 | Ohio State | 4 | 2 | 4 | 6 | 1 | 4 | 5 | 1 | 0.25 |
| 4 | Indiana | 4 | 4 | 1 | 5 | 1 | 6 | 7 | -2 | -0.50 |
| 7 | Michigan State | 4 | 3 | 4 | 7 | 2 | 1 | 3 | 4 | 1.00 |
| 7 | Wisconsin | 3 | 1 | 1 | 2 | 2 | 7 | 9 | -7 | -2.33 |
| 9 | Iowa | 4 | 3 | 6 | 9 | 3 | 1 | 4 | 5 | 1.25 |
| 9 | Maryland | 4 | 3 | 4 | 7 | 3 | 1 | 4 | 3 | 0.75 |
| 9 | Illinois | 5 | 5 | 3 | 8 | 3 | 2 | 5 | 3 | 0.60 |
| 9 | Minnesota | 4 | 4 | 3 | 7 | 3 | 2 | 5 | 2 | 0.50 |
| 13 | Northwestern | 4 | 5 | 3 | 8 | 4 | 4 | 8 | 0 | 0.00 |
| 14 | Nebraska | 5 | 1 | 5 | 6 | 5 | 2 | 7 | -1 | -0.20 |