2025 Big Ten Conference Leaders Turnover Margin - Games in October Only through 10/21/2025
| Name | G | Fum. Gain | Int. Gain | Total Gain | Fum. Lost | Int. Lost | Total Lost | Margin | Margin/G | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Iowa | 2 | 1 | 4 | 5 | 0 | 2 | 2 | 3 | 1.50 |
| 1 | Michigan | 3 | 1 | 5 | 6 | 0 | 2 | 2 | 4 | 1.33 |
| 1 | Ohio State | 3 | 2 | 2 | 4 | 0 | 0 | 0 | 4 | 1.33 |
| 1 | Minnesota | 3 | 1 | 3 | 4 | 0 | 1 | 1 | 3 | 1.00 |
| 1 | Indiana | 2 | 0 | 2 | 2 | 0 | 1 | 1 | 1 | 0.50 |
| 1 | Nebraska | 3 | 1 | 2 | 3 | 0 | 4 | 4 | -1 | -0.33 |
| 7 | Maryland | 3 | 1 | 6 | 7 | 1 | 2 | 3 | 4 | 1.33 |
| 7 | UCLA | 3 | 3 | 1 | 4 | 1 | 2 | 3 | 1 | 0.33 |
| 7 | Rutgers | 2 | 3 | 1 | 4 | 1 | 3 | 4 | 0 | 0.00 |
| 7 | Washington | 3 | 0 | 2 | 2 | 1 | 4 | 5 | -3 | -1.00 |
| 7 | Wisconsin | 3 | 0 | 1 | 1 | 1 | 4 | 5 | -4 | -1.33 |
| 12 | Northwestern | 3 | 3 | 2 | 5 | 2 | 1 | 3 | 2 | 0.67 |
| 12 | Oregon | 2 | 1 | 3 | 4 | 2 | 3 | 5 | -1 | -0.50 |
| 12 | Illinois | 2 | 2 | 0 | 2 | 2 | 1 | 3 | -1 | -0.50 |
| 12 | USC | 2 | 0 | 3 | 3 | 2 | 3 | 5 | -2 | -1.00 |
| 12 | Penn State | 3 | 1 | 1 | 2 | 2 | 3 | 5 | -3 | -1.00 |
| 12 | Michigan State | 3 | 0 | 1 | 1 | 2 | 2 | 4 | -3 | -1.00 |
| 18 | Purdue | 3 | 1 | 2 | 3 | 5 | 4 | 9 | -6 | -2.00 |