Week 9
Final
1990 Pac-12
| Team | W | L | PCT |
|---|---|---|---|
 Arizona | 7 | 5 | .583 |
 Arizona State | 4 | 7 | .364 |
 California | 7 | 4 | .636 |
 UCLA | 5 | 6 | .455 |
 Oregon | 8 | 4 | .667 |
 Oregon State | 1 | 10 | .091 |
 USC | 8 | 4 | .667 |
 Stanford | 5 | 6 | .455 |
 Washington State | 3 | 8 | .273 |
 Washington | 10 | 2 | .833 |
Game Summary
The Oregon State Beavers were easily defeated by the Washington State Cougars, 55 to 24, on October 20, 1990.