2015 Illinois Fighting Illini Opponent Penalty Split Stats through 01/11/2016
| Split | G | Pen. | Yards | Pen./G | Yards/G |
|---|---|---|---|---|---|
| All Games | 12 | 63 | 535 | 5.3 | 44.6 |
| at Home | 6 | 39 | 305 | 6.5 | 50.8 |
| on Road/Neutral Site | 6 | 24 | 230 | 4.0 | 38.3 |
| in Wins | 5 | 31 | 254 | 6.2 | 50.8 |
| in Losses | 7 | 32 | 281 | 4.6 | 40.1 |
| vs. Conference | 8 | 35 | 306 | 4.4 | 38.3 |
| vs. Non-Conference | 4 | 28 | 229 | 7.0 | 57.3 |
| vs. Ranked (AP) | 5 | 24 | 226 | 4.8 | 45.2 |
| vs. Unranked (AP) | 7 | 39 | 309 | 5.6 | 44.1 |
| vs. FBS (I-A) | 11 | 59 | 498 | 5.4 | 45.3 |
| vs. FCS (I-AA) | 1 | 4 | 37 | 4.0 | 37.0 |
| vs. FBS Winning | 7 | 34 | 310 | 4.9 | 44.3 |
| vs. FBS Non-Winning | 4 | 25 | 188 | 6.3 | 47.0 |
| vs. FBS Power 5 | 9 | 41 | 357 | 4.6 | 39.7 |
| vs. FBS non-Power 5 | 2 | 18 | 141 | 9.0 | 70.5 |
| in August/September | 4 | 28 | 229 | 7.0 | 57.3 |
| in October | 4 | 19 | 192 | 4.8 | 48.0 |
| in November | 4 | 16 | 114 | 4.0 | 28.5 |
| in December/January | 0 | 0 | 0 | - | - |