2018 Illinois Fighting Illini Total Defense Split Stats through 01/07/2019
| Split | G | Rush Yards | Pass Yards | Plays | Total Yards | Yards/Play | Yards/G |
|---|---|---|---|---|---|---|---|
| All Games | 12 | 2943 | 3157 | 866 | 6100 | 7.04 | 508.3 |
| at Home | 6 | 1244 | 1610 | 429 | 2854 | 6.65 | 475.7 |
| on Road/Neutral Site | 6 | 1699 | 1547 | 437 | 3246 | 7.43 | 541.0 |
| in Wins | 4 | 546 | 1092 | 293 | 1638 | 5.59 | 409.5 |
| in Losses | 8 | 2397 | 2065 | 573 | 4462 | 7.79 | 557.8 |
| vs. Conference | 9 | 2479 | 2181 | 635 | 4660 | 7.34 | 517.8 |
| vs. Non-Conference | 3 | 464 | 976 | 231 | 1440 | 6.23 | 480.0 |
| vs. Ranked (AP) | 3 | 851 | 511 | 195 | 1362 | 6.98 | 454.0 |
| vs. Unranked (AP) | 9 | 2092 | 2646 | 671 | 4738 | 7.06 | 526.4 |
| vs. FBS (I-A) | 11 | 2877 | 2862 | 803 | 5739 | 7.15 | 521.7 |
| vs. FCS (I-AA) | 1 | 66 | 295 | 63 | 361 | 5.73 | 361.0 |
| vs. FBS Winning | 6 | 1601 | 1370 | 425 | 2971 | 6.99 | 495.2 |
| vs. FBS Non-Winning | 5 | 1276 | 1492 | 378 | 2768 | 7.32 | 553.6 |
| vs. FBS Power 5 | 9 | 2479 | 2181 | 635 | 4660 | 7.34 | 517.8 |
| vs. FBS non-Power 5 | 2 | 398 | 681 | 168 | 1079 | 6.42 | 539.5 |
| in August/September | 4 | 851 | 1180 | 302 | 2031 | 6.73 | 507.8 |
| in October | 4 | 1134 | 1120 | 302 | 2254 | 7.46 | 563.5 |
| in November | 4 | 958 | 857 | 262 | 1815 | 6.93 | 453.8 |
| in December/January | 0 | 0 | 0 | 0 | 0 | - | - |