Big Ten rankings · National FBS rankings · All teams
| Date | H/A | Opponent | Tier:Conf | Result | Score | Notes |
|---|---|---|---|---|---|---|
| 8/31 | H | Idaho (9-3) | [FCS:BSKY] | W | 24-14 | |
| 9/7 | H | Boise St (12-1) | [G5:MWC] | W | 37-34 | |
| 9/14 | A | Oregon St (5-7) | [G5:Pac-12] | W | 49-14 | |
| 9/28 | A | UCLA (5-7) | [P4:Big Ten] | W | 34-13 | |
| 10/4 | H | Michigan St (5-7) | [P4:Big Ten] | W | 31-10 | |
| 10/12 | H | Ohio State (10-2) | [P4:Big Ten] | W | 32-31 | |
| 10/18 | A | Purdue (1-11) | [P4:Big Ten] | W | 35-0 | |
| 10/26 | H | Illinois (9-3) | [P4:Big Ten] | W | 38-9 | |
| 11/2 | A | Michigan (7-5) | [P4:Big Ten] | W | 38-17 | |
| 11/9 | H | Maryland (4-8) | [P4:Big Ten] | W | 39-18 | |
| 11/16 | A | Wisconsin (5-7) | [P4:Big Ten] | W | 16-13 | |
| 11/30 | H | Washington (6-6) | [P4:Big Ten] | W | 49-21 | |
| 12/7 | N | Penn State (11-2) | [P4:Big Ten] | W | 45-37 | Big Ten Championship |
| 1/1 | N | Ohio State (10-2) | [P4:Big Ten] | L | 21-41 | College Football Playoff Quarterfinal at the Rose Bowl Presented by Prudential * |
* game does not count in Harbin ratings