2008 Big Ten Conference Leaders Passing Defense - Games on Grass Field Only through 01/08/2009
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | Int | TD | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ohio State | 11 | 381 | 220 | 57.7 | 1998 | 5.2 | 13 | 9 | 102.76 | 34.6 | 181.6 |
| 2 | Purdue | 12 | 360 | 202 | 56.1 | 2209 | 6.1 | 10 | 14 | 114.92 | 30.0 | 184.1 |
| 3 | Penn State | 11 | 337 | 201 | 59.6 | 2154 | 6.4 | 13 | 9 | 114.42 | 30.6 | 195.8 |
| 4 | Minnesota | 3 | 88 | 57 | 64.8 | 589 | 6.7 | 3 | 7 | 140.42 | 29.3 | 196.3 |
| 5 | Iowa | 10 | 360 | 198 | 55.0 | 1975 | 5.5 | 18 | 7 | 97.50 | 36.0 | 197.5 |
| 6 | Illinois | 2 | 53 | 36 | 67.9 | 411 | 7.8 | 1 | 4 | 154.21 | 26.5 | 205.5 |
| 7 | Michigan State | 10 | 321 | 168 | 52.3 | 2058 | 6.4 | 7 | 13 | 115.20 | 32.1 | 205.8 |
| 8 | Michigan | 4 | 104 | 58 | 55.8 | 848 | 8.2 | 3 | 10 | 150.22 | 26.0 | 212.0 |
| 9 | Northwestern | 9 | 305 | 184 | 60.3 | 1927 | 6.3 | 8 | 8 | 116.81 | 33.9 | 214.1 |
| 10 | Wisconsin | 4 | 129 | 70 | 54.3 | 909 | 7.0 | 1 | 4 | 122.13 | 32.3 | 227.3 |
| 11 | Indiana | 2 | 97 | 63 | 64.9 | 737 | 7.6 | 1 | 7 | 150.52 | 48.5 | 368.5 |