| 9/1/2018 | Washington State | 41 | at | Wyoming (6-6) | 19 | at MW | ||
| 9/8/2018 | San Jose State (1-11) | 0 | at | Washington State | 31 | MW | ||
| 9/15/2018 | Eastern Washington (12-3) | 24 | at | Washington State | 59 | BSky (1AA) | ||
| 9/21/2018 | Washington State | 36 | at | Southern California (5-7,4-5) | 39 | |||
| 9/29/2018 | Utah (9-5,6-4) | 24 | at | Washington State | 28 | |||
| 10/6/2018 | Washington State | 56 | at | Oregon State (2-10,1-8) | 37 | |||
| 10/20/2018 | Oregon (9-4,5-4) | 20 | at | Washington State | 34 | |||
| 10/27/2018 | Washington State | 41 | at | Stanford (9-4,6-3) | 38 | |||
| 11/3/2018 | California (7-6,4-5) | 13 | at | Washington State | 19 | |||
| 11/10/2018 | Washington State | 31 | at | Colorado (5-7,2-7) | 7 | |||
| 11/17/2018 | Arizona (5-7,4-5) | 28 | at | Washington State | 69 | |||
| 11/23/2018 | Washington (10-4,8-2) | 28 | at | Washington State | 15 | |||
| 12/28/2018 | Iowa State (8-5) | 26 | vs | Washington State | 28 | VALERO ALAMO BOWL - San Antonio TX | B12 |
| vs Washington State | vs Other Opponents | Washington State compared to OOs | |
| Record: | 2-11 | 86-68 | |
| Points Scored: | 23.31 | 28.48 | 5.17 |
| Points Allowed: | 37.54 | 24.92 | 12.62 |
| Margin: | -14.23 | 3.56 | 17.79 |
| Total Points: | 60.85 | 53.40 | 7.45 |