2018 Big Ten Conference Leaders Passing Defense - Games vs. Ranked Teams Only (AP Poll) through 01/07/2019
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Illinois | 3 | 61 | 39 | 63.9 | 511 | 8.4 | 8 | 2 | 171.02 | 20.3 | 170.3 |
| 2 | Wisconsin | 4 | 98 | 64 | 65.3 | 707 | 7.2 | 4 | 4 | 131.22 | 24.5 | 176.8 |
| 3 | Michigan | 5 | 123 | 70 | 56.9 | 1028 | 8.4 | 8 | 3 | 143.70 | 24.6 | 205.6 |
| 4 | Iowa | 2 | 59 | 28 | 47.5 | 316 | 5.4 | 2 | 3 | 93.47 | 29.5 | 158.0 |
| 5 | Penn State | 4 | 121 | 61 | 50.4 | 750 | 6.2 | 6 | 3 | 113.87 | 30.3 | 187.5 |
| 6 | Maryland | 5 | 153 | 94 | 61.4 | 1303 | 8.5 | 10 | 5 | 148.00 | 30.6 | 260.6 |
| 7 | Rutgers | 4 | 131 | 82 | 62.6 | 947 | 7.2 | 10 | 1 | 146.98 | 32.8 | 236.8 |
| 8 | Minnesota | 4 | 138 | 95 | 68.8 | 1168 | 8.5 | 9 | 3 | 157.11 | 34.5 | 292.0 |
| 9 | Northwestern | 4 | 140 | 98 | 70.0 | 1307 | 9.3 | 8 | 1 | 165.85 | 35.0 | 326.8 |
| 10 | Indiana | 4 | 142 | 90 | 63.4 | 1268 | 8.9 | 14 | 5 | 163.88 | 35.5 | 317.0 |
| 11 | Michigan State | 5 | 187 | 117 | 62.6 | 1323 | 7.1 | 7 | 4 | 130.07 | 37.4 | 264.6 |
| 12 | Nebraska | 4 | 156 | 94 | 60.3 | 1066 | 6.8 | 9 | 4 | 131.57 | 39.0 | 266.5 |
| 13 | Ohio State | 4 | 169 | 102 | 60.4 | 1108 | 6.6 | 7 | 4 | 124.37 | 42.3 | 277.0 |
| 14 | Purdue | 3 | 142 | 93 | 65.5 | 980 | 6.9 | 3 | 1 | 129.02 | 47.3 | 326.7 |