2018 Big Ten Conference Leaders Passing Defense - Games in December/January Only through 01/07/2019
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Wisconsin | 1 | 17 | 6 | 35.3 | 48 | 2.8 | 0 | 4 | 11.95 | 17.0 | 48.0 |
| 2 | Iowa | 1 | 32 | 14 | 43.8 | 152 | 4.8 | 1 | 2 | 81.46 | 32.0 | 152.0 |
| 3 | Minnesota | 1 | 12 | 5 | 41.7 | 77 | 6.4 | 0 | 0 | 95.57 | 12.0 | 77.0 |
| 4 | Michigan State | 1 | 33 | 19 | 57.6 | 166 | 5.0 | 1 | 0 | 109.83 | 33.0 | 166.0 |
| 5 | Ohio State | 2 | 99 | 63 | 63.6 | 582 | 5.9 | 2 | 2 | 115.65 | 49.5 | 291.0 |
| 6 | Penn State | 1 | 15 | 9 | 60.0 | 121 | 8.1 | 0 | 0 | 127.76 | 15.0 | 121.0 |
| 7 | Michigan | 1 | 24 | 14 | 58.3 | 170 | 7.1 | 1 | 0 | 131.58 | 24.0 | 170.0 |
| 8 | Northwestern | 2 | 86 | 61 | 70.9 | 801 | 9.3 | 7 | 3 | 169.05 | 43.0 | 400.5 |
| 9 | Purdue | 1 | 23 | 16 | 69.6 | 378 | 16.4 | 5 | 0 | 279.36 | 23.0 | 378.0 |