2018 Big Ten Conference Leaders Passing Defense - Games vs. Unranked Teams Only (AP Poll) through 01/07/2019
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Iowa | 11 | 343 | 202 | 58.9 | 2077 | 6.1 | 17 | 17 | 116.19 | 31.2 | 188.8 |
| 2 | Maryland | 7 | 186 | 90 | 48.4 | 1175 | 6.3 | 9 | 13 | 103.44 | 26.6 | 167.9 |
| 2 | Illinois | 9 | 311 | 197 | 63.3 | 2646 | 8.5 | 22 | 13 | 149.79 | 34.6 | 294.0 |
| 4 | Northwestern | 10 | 365 | 225 | 61.6 | 2350 | 6.4 | 13 | 11 | 121.44 | 36.5 | 235.0 |
| 5 | Penn State | 9 | 295 | 162 | 54.9 | 1609 | 5.5 | 8 | 10 | 102.90 | 32.8 | 178.8 |
| 5 | Wisconsin | 9 | 262 | 145 | 55.3 | 1751 | 6.7 | 10 | 10 | 116.45 | 29.1 | 194.6 |
| 5 | Michigan State | 8 | 290 | 163 | 56.2 | 1605 | 5.5 | 7 | 10 | 103.77 | 36.3 | 200.6 |
| 5 | Purdue | 10 | 341 | 208 | 61.0 | 2721 | 8.0 | 19 | 10 | 140.54 | 34.1 | 272.1 |
| 9 | Michigan | 8 | 208 | 94 | 45.2 | 893 | 4.3 | 6 | 8 | 83.08 | 26.0 | 111.6 |
| 9 | Rutgers | 8 | 223 | 115 | 51.6 | 1293 | 5.8 | 11 | 8 | 109.38 | 27.9 | 161.6 |
| 9 | Minnesota | 9 | 271 | 170 | 62.7 | 1593 | 5.9 | 12 | 8 | 120.82 | 30.1 | 177.0 |
| 9 | Indiana | 8 | 227 | 135 | 59.5 | 1619 | 7.1 | 13 | 8 | 131.23 | 28.4 | 202.4 |
| 13 | Nebraska | 8 | 269 | 144 | 53.5 | 1787 | 6.6 | 6 | 7 | 111.49 | 33.6 | 223.4 |
| 13 | Ohio State | 10 | 320 | 170 | 53.1 | 2325 | 7.3 | 11 | 7 | 121.13 | 32.0 | 232.5 |