Schedule:
| Game | Date | Away Team (Rank) | Away Score | Home Team (Rank) | Home Score | Game Status | Result | Margin |
|---|---|---|---|---|---|---|---|---|
| 1 | 2015-09-05 | Kent State (121) | 3 | Illinois (71) | 52 | Final | W | 49 |
| 2 | 2015-09-12 | Western Illinois | 0 | Illinois | 44 | Final | W | 44 |
| 3 | 2015-09-19 | Illinois (21) | 14 | North Carolina (90) | 48 | Final | L | -34 |
| 4 | 2015-09-26 | Middle Tennessee | 25 | Illinois | 27 | Final | W | 2 |
| 5 | 2015-10-03 | Nebraska (55) | 13 | Illinois (50) | 14 | Final | W | 1 |
| 6 | 2015-10-10 | Illinois (36) | 20 | Iowa (19) | 29 | Final | L | -9 |
| 7 | 2015-10-24 | Wisconsin (27) | 24 | Illinois (43) | 13 | Final | L | -11 |
| 8 | 2015-10-31 | Illinois (47) | 0 | Penn State (37) | 39 | Final | L | -39 |
| 9 | 2015-11-07 | Illinois (66) | 48 | Purdue (93) | 14 | Final | W | 34 |
| 10 | 2015-11-14 | Ohio State (3) | 28 | Illinois (54) | 3 | Final | L | -25 |
| 11 | 2015-11-21 | Illinois (62) | 23 | Minnesota (61) | 32 | Final | L | -9 |
| 12 | 2015-11-28 | Northwestern (16) | 24 | Illinois (67) | 14 | Final | L | -10 |