2012 Big Ten Conference Leaders Passing Defense - Games in August/September Only through 01/07/2013
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Michigan | 4 | 89 | 47 | 52.8 | 618 | 6.9 | 2 | 2 | 114.07 | 22.3 | 154.5 |
| 2 | Illinois | 5 | 145 | 89 | 61.4 | 1107 | 7.6 | 9 | 4 | 140.47 | 29.0 | 221.4 |
| 3 | Michigan State | 5 | 151 | 75 | 49.7 | 836 | 5.5 | 3 | 4 | 97.43 | 30.2 | 167.2 |
| 4 | Iowa | 5 | 153 | 96 | 62.7 | 1020 | 6.7 | 5 | 6 | 121.69 | 30.6 | 204.0 |
| 5 | Nebraska | 5 | 160 | 81 | 50.6 | 940 | 5.9 | 7 | 3 | 110.67 | 32.0 | 188.0 |
| 6 | Penn State | 5 | 173 | 109 | 63.0 | 1129 | 6.5 | 6 | 4 | 124.65 | 34.6 | 225.8 |
| 7 | Minnesota | 5 | 177 | 98 | 55.4 | 908 | 5.1 | 4 | 7 | 98.01 | 35.4 | 181.6 |
| 8 | Indiana | 4 | 146 | 91 | 62.3 | 941 | 6.4 | 5 | 3 | 123.66 | 36.5 | 235.3 |
| 9 | Wisconsin | 5 | 184 | 104 | 56.5 | 1162 | 6.3 | 10 | 0 | 127.51 | 36.8 | 232.4 |
| 10 | Purdue | 4 | 158 | 91 | 57.6 | 992 | 6.3 | 6 | 8 | 112.74 | 39.5 | 248.0 |
| 11 | Northwestern | 5 | 215 | 125 | 58.1 | 1445 | 6.7 | 7 | 2 | 123.48 | 43.0 | 289.0 |
| 12 | Ohio State | 5 | 221 | 134 | 60.6 | 1378 | 6.2 | 5 | 7 | 114.13 | 44.2 | 275.6 |