2018 Illinois Fighting Illini First Down Split Stats through 01/07/2019
| Split | G | Rush | Pass | Penalty | Total |
|---|---|---|---|---|---|
| All Games | 12 | 125 | 91 | 17 | 233 |
| at Home | 6 | 59 | 48 | 6 | 113 |
| on Road/Neutral Site | 6 | 66 | 43 | 11 | 120 |
| in Wins | 4 | 43 | 31 | 5 | 79 |
| in Losses | 8 | 82 | 60 | 12 | 154 |
| vs. Conference | 9 | 94 | 65 | 11 | 170 |
| vs. Non-Conference | 3 | 31 | 26 | 6 | 63 |
| vs. Ranked (AP) | 3 | 29 | 28 | 4 | 61 |
| vs. Unranked (AP) | 9 | 96 | 63 | 13 | 172 |
| vs. FBS (I-A) | 11 | 116 | 83 | 14 | 213 |
| vs. FCS (I-AA) | 1 | 9 | 8 | 3 | 20 |
| vs. FBS Winning | 6 | 59 | 47 | 9 | 115 |
| vs. FBS Non-Winning | 5 | 57 | 36 | 5 | 98 |
| vs. FBS Power 5 | 9 | 94 | 65 | 11 | 170 |
| vs. FBS non-Power 5 | 2 | 22 | 18 | 3 | 43 |
| in August/September | 4 | 43 | 37 | 9 | 89 |
| in October | 4 | 38 | 21 | 5 | 64 |
| in November | 4 | 44 | 33 | 3 | 80 |
| in December/January | 0 | 0 | 0 | 0 | 0 |