Big Ten rankings · National FBS rankings · All teams
| Date | H/A | Opponent | Tier:Conf | Result | Score | Notes |
|---|---|---|---|---|---|---|
| 9/3 | H | Notre Dame (8-4) | [P4:Ind] | W | 21-10 | |
| 9/10 | H | Arkansas St (3-9) | [G5:Sun Belt] | W | 45-12 | |
| 9/17 | H | Toledo (8-5) | [G5:MAC] | W | 77-21 | |
| 9/24 | H | Wisconsin (6-6) | [P4:Big Ten] | W | 52-21 | |
| 10/1 | H | Rutgers (4-8) | [P4:Big Ten] | W | 49-10 | |
| 10/8 | A | Michigan St (5-7) | [P4:Big Ten] | W | 49-20 | |
| 10/22 | H | Iowa (7-5) | [P4:Big Ten] | W | 54-10 | |
| 10/29 | A | Penn State (10-2) | [P4:Big Ten] | W | 44-31 | |
| 11/5 | A | Northwestern (1-11) | [P4:Big Ten] | W | 21-7 | |
| 11/12 | H | Indiana (4-8) | [P4:Big Ten] | W | 56-14 | |
| 11/19 | A | Maryland (7-5) | [P4:Big Ten] | W | 43-30 | |
| 11/26 | H | Michigan (13-0) | [P4:Big Ten] | L | 23-45 | |
| 12/31 | N | Georgia (13-0) | [P4:SEC] | L | 41-42 | CFP Semifinal at the Chick-fil-A Peach Bowl * |
* game does not count in Harbin ratings