| Day | Date | Opponent | Location | TV | Outcome/Time |
| Mon | 11/10/03 | Basketball Travelers (X) | Pullman | | W, 68-57
Recap |
| Sat | 11/15/03 | EA Sports (X) | Pullman | | W, 64-53
Recap |
| Thu | 11/20/03 | VMI (BP Top of World Classic) | Fairbanks, Alaska | | W, 66-46
Recap | Stats |
| Sat | 11/22/03 | Alaska Fairbanks (BP Top of World Classic) | Fairbanks, Alaska | | W, 57-51
Recap | Final Stats |
| Sun | 11/23/03 | Rice (BP Top of World Classic) | Fairbanks, Alaska | | L, 64-49
Recap | Box Score |
| Fri | 11/28/03 | Southern Utah | Cedar City, Utah | | L, 55-36
Recap | Box Score |
| Mon | 12/01/03 | IPFW | Pullman | | W, 66-46
Recap | Box Score |
| Sat | 12/06/03 | TCU | Pullman | | W, 73-52
Recap | Box Score |
| Sat | 12/13/03 | Montana | Missoula, Mont. | | W, 64-50
Recap | Box Score |
| Sat | 12/20/03 | Idaho | Pullman | | W, 62-55
Recap | Box Score |
| Mon | 12/22/03 | Fresno State | Fresno, Calif. | | L, 46-29
Recap | Box Score | Gametracker |
| Sun | 12/28/03 | Gonzaga | Spokane | FOX Sports Net Northwest | L, 96-58
Recap | Box Score | Gametracker |
| Fri | 01/02/04 | Stanford* | Stanford | | L, 73-51
Recap | Box Score | Gametracker |
| Sun | 01/04/04 | California* | Berkeley | KRON (Channel 4-San Francisco) | W, 55-50
Recap | Box Score | Gametracker |
| Thu | 01/08/04 | UCLA* | Spokane# | | L, 48-45
Recap | Box Score |
| Sat | 01/10/04 | USC* | Spokane# | FOX Sports Net Regional | W, 76-61
Recap | Box Score |
| Thu | 01/15/04 | Oregon State* | Corvallis | FOX Sports Net Northwest | L, 52-41
Recap | Box Score | Gametracker |
| Sat | 01/17/04 | Oregon* | Eugene | Oregon Sports Network | L, 60-45
Recap | Box Score |
| Sat | 01/24/04 | Washington* | Pullman | FOX Sports Net Northwest | W, 75-62
Recap | Box Score |
| Thu | 01/29/04 | Arizona State* | Pullman | | W, 63-56
Recap | Box Score |
| Sat | 01/31/04 | Arizona* | Pullman | FOX Sports Net | L, 61-57
Recap | Box Score |
| Thu | 02/05/04 | UCLA* | Los Angeles | | W, 55-48
Recap | Box Score |
| Sat | 02/07/04 | USC* | Los Angeles | FOX Sports Net Northwest/West | W, 60-51
Recap | Box Score | Gametracker |
| Thu | 02/12/04 | Oregon State* | Pullman | FOX Sports Net Northwest | L, 65-58
Recap | Box Score |
| Sat | 02/14/04 | Oregon* | Pullman | Oregon Sports Network | L, 67-62 (OT)
Recap | Box Score |
| Thu | 02/19/04 | Washington* | Seattle | | L, 71-67
Recap | Box Score | Gametracker |
| Thu | 02/26/04 | Arizona State* | Tempe | | W, 83-70
Recap | Box Score |
| Sat | 02/28/04 | Arizona* | Tucson | FOX Sport Net Northwest/Arizona | L, 72-60
Recap | Box Score | Gametracker |
| Thu | 03/04/04 | Stanford* | Pullman | FOX Sports Net Northwest/Bay Area | L, 63-61
Recap | Box Score |
| Sat | 03/06/04 | California* | Pullman | | W, 70-58
Recap | Box Score |
| Thu | 03/11/04 | Stanford (Pac-10 Tournament) | Los Angeles$ | FOX Sports Net | L, 68-47
Recap | Box Score | Gametracker |
