Schedule
| Date | Time | Opponent# | Rank# | Site | TV | Result | Attendance | |
|---|---|---|---|---|---|---|---|---|
| September 1 | 12:45 pm | Idaho* | Martin Stadium • Pullman, WA | W 38-26 | 28,933 | |||
| September 9 | 2:00 pm | at Nevada* | Mackay Stadium • Reno, NV | W 55-27 | 17,552 | |||
| September 17 | 2:00 pm | Grambling State* | Qwest Field • Seattle, WA (2005 Cougar Gridiron Classic) | W 48-7 | 51,486 | |||
| October 1 | 4:00 pm | at Oregon State | Reser Stadium • Corvallis, OR | TBS | L 33-44 | 42,908 | ||
| October 8 | 4:00 pm | Stanford | Martin Stadium • Pullman, WA | FSN | L 21-24 | 33,422 | ||
| October 15 | 2:00 pm | #11 UCLA | Martin Stadium • Pullman, WA | L 41-44 | 35,117 | |||
| October 22 | 2:00 pm | at #25 California | California Memorial Stadium • Berkeley, CA | L 38-42 | 52,569 | |||
| October 29 | 4:00 pm | at #1 USC | Los Angeles Memorial Coliseum • Los Angeles, CA | ABC | L 13-55 | 92,021 | ||
| November 5 | 2:00 pm | Arizona State | Martin Stadium • Pullman, WA | L 24-27 | 31,054 | |||
| November 12 | 6:00 pm | #11 Oregon | Martin Stadium • Pullman, WA | L 31-34 | 27,595 | |||
| November 19 | 3:45 pm | at Washington | Husky Stadium • Seattle, WA (98th Apple Cup) | FSN | W 26-22 | 70,713 | ||
Read more about this topic: 2005 Washington State Cougars Football Team