2021 Big Ten Conference Leaders Passing Defense - Games in October Only through 01/10/2022
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Purdue | 4 | 87 | 45 | 51.7 | 685 | 7.9 | 3 | 8 | 110.85 | 21.8 | 171.3 |
| 2 | Illinois | 4 | 103 | 59 | 57.3 | 614 | 6.0 | 3 | 2 | 113.08 | 25.8 | 153.5 |
| 3 | Penn State | 4 | 120 | 63 | 52.5 | 733 | 6.1 | 3 | 4 | 105.39 | 30.0 | 183.3 |
| 4 | Michigan | 4 | 113 | 64 | 56.6 | 787 | 7.0 | 5 | 5 | 120.90 | 28.3 | 196.8 |
| 5 | Rutgers | 4 | 106 | 66 | 62.3 | 1129 | 10.7 | 12 | 1 | 187.20 | 26.5 | 282.3 |
| 6 | Northwestern | 4 | 102 | 69 | 67.6 | 686 | 6.7 | 2 | 1 | 128.65 | 25.5 | 171.5 |
| 7 | Maryland | 4 | 114 | 71 | 62.3 | 1082 | 9.5 | 10 | 0 | 170.95 | 28.5 | 270.5 |
| 8 | Wisconsin | 5 | 133 | 73 | 54.9 | 758 | 5.7 | 4 | 4 | 106.67 | 26.6 | 151.6 |
| 9 | Minnesota | 4 | 134 | 80 | 59.7 | 899 | 6.7 | 5 | 1 | 126.88 | 33.5 | 224.8 |
| 10 | Iowa | 4 | 148 | 85 | 57.4 | 836 | 5.6 | 5 | 10 | 102.52 | 37.0 | 209.0 |
| 11 | Indiana | 4 | 138 | 87 | 63.0 | 1111 | 8.1 | 10 | 3 | 150.23 | 34.5 | 277.8 |
| 12 | Ohio State | 4 | 148 | 99 | 66.9 | 955 | 6.5 | 6 | 6 | 126.37 | 37.0 | 238.8 |
| 13 | Nebraska | 4 | 149 | 102 | 68.5 | 958 | 6.4 | 6 | 3 | 131.73 | 37.3 | 239.5 |
| 14 | Michigan State | 4 | 206 | 127 | 61.7 | 1348 | 6.5 | 7 | 3 | 124.92 | 51.5 | 337.0 |