2012 Big Ten Conference Leaders Turnover Margin - Games vs. BCS Automatic Qualifying Teams through 01/07/2013
| Name | G | Fum. Gain | Int. Gain | Total Gain | Fum. Lost | Int. Lost | Total Lost | Margin | Margin/G | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Iowa | 9 | 12 | 9 | 21 | 2 | 8 | 10 | 11 | 1.22 |
| 2 | Northwestern | 12 | 15 | 13 | 28 | 8 | 7 | 15 | 13 | 1.08 |
| 3 | Penn State | 10 | 9 | 9 | 18 | 6 | 4 | 10 | 8 | 0.80 |
| 4 | Wisconsin | 11 | 6 | 8 | 14 | 4 | 5 | 9 | 5 | 0.45 |
| 5 | Michigan State | 10 | 3 | 11 | 14 | 6 | 6 | 12 | 2 | 0.20 |
| 6 | Ohio State | 9 | 5 | 8 | 13 | 9 | 6 | 15 | -2 | -0.22 |
| 7 | Indiana | 8 | 5 | 6 | 11 | 3 | 10 | 13 | -2 | -0.25 |
| 8 | Minnesota | 10 | 6 | 8 | 14 | 4 | 13 | 17 | -3 | -0.30 |
| 9 | Purdue | 10 | 8 | 6 | 14 | 9 | 10 | 19 | -5 | -0.50 |
| 10 | Michigan | 11 | 10 | 7 | 17 | 8 | 17 | 25 | -8 | -0.73 |
| 11 | Nebraska | 11 | 7 | 10 | 17 | 16 | 12 | 28 | -11 | -1.00 |
| 12 | Illinois | 9 | 7 | 3 | 10 | 11 | 11 | 22 | -12 | -1.33 |