 | | Washington State | 68 | | 1-18 |  | | USC | 85 | | 7-13 | | Mar 8, 1990 | |  | | Washington | 51 | | 5-14 |  | | Arizona State | 57 | | 8-13 | | Mar 8, 1990 | |
|  | | Oregon State | 75 | | 16-4 | | | Arizona State | 83 | | 8-13 | | Mar 9, 1990 | | | | USC | 57 | | 7-13 |  | | Arizona | 80 | | 18-3 | | Mar 9, 1990 | |  | | UCLA | 94 | | 13-8 |  | | Oregon | 76 | | 10-10 | | Mar 9, 1990 | |  | | Stanford | 77 | | 10-10 |  | | California | 61 | | 12-7 | | Mar 9, 1990 | |
| | | UCLA | 79 | | 13-8 | | | Arizona State | 78 | | 8-13 | | Mar 10, 1990 | | | | Stanford | 61 | | 10-10 | | | Arizona | 85 | | 18-3 | | Mar 10, 1990 | |
| | | UCLA | 78 | | 13-8 | | | Arizona | 94 | | 18-3 | | Mar 11, 1990 | |
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