 | | Loyola Marymount | 111 | | 13-4 |  | | Gonzaga | 98 | | 5-10 | | Mar 4, 1989 | |  | | Saint Mary's | 86 | | 13-3 |  | | Portland | 48 | | 2-13 | | Mar 4, 1989 | |  | | San Diego | 69 | | 2-13 |  | | Pepperdine | 72 | | 11-5 | | Mar 4, 1989 | |  | | Santa Clara | 69 | | 9-8 |  | | San Francisco | 64 | | 8-6 | | Mar 4, 1989 | |
| | | Saint Mary's | 61 | | 13-3 | | | Santa Clara | 63 | | 9-8 | | Mar 5, 1989 | | | | Pepperdine | 98 | | 11-5 | | | Loyola Marymount | 112 | | 13-4 | | Mar 5, 1989 | |
| | | Santa Clara | 70 | | 9-8 | | | Loyola Marymount | 75 | | 13-4 | | Mar 6, 1989 | |
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