 | | Arizona State | 85 | | 8-10 |  | | Colorado | 97 | | 8-10 | | Mar 7, 2018 3:00 PM | |  | | California | 58 | | 2-16 |  | | Stanford | 76 | | 11-7 | | Mar 7, 2018 5:30 PM | |  | | Oregon State | 69 | | 7-11 |  | | Washington | 66 | | 10-8 | | Mar 7, 2018 9:00 PM | |  | | Washington State | 62 | | 4-14 |  | | Oregon | 64 | | 10-8 | | Mar 7, 2018 11:30 PM | |
| | | Colorado | 67 | | 8-10 |  | 15 | Arizona | 83 | | 14-4 | | Mar 8, 2018 3:00 PM | | | | Oregon | 68 | | 10-8 |  | | Utah | 66 | | 11-7 | | Mar 8, 2018 7:00 PM | | | | Stanford | 77 | | 11-7 |  | | UCLA | 88 | | 11-7 | | Mar 8, 2018 7:00 PM | | | | Oregon State | 48 | | 7-11 |  | | USC | 61 | | 12-6 | | Mar 8, 2018 7:00 PM | |
| | | UCLA | 67 | | 11-7 | | 15 | Arizona | 78 | | 14-4 | | Mar 9, 2018 9:00 PM | | | | Oregon | 54 | | 10-8 | | | USC | 74 | | 12-6 | | Mar 9, 2018 11:30 PM | |
| | | USC | 61 | | 12-6 | | 15 | Arizona | 75 | | 14-4 | | Mar 10, 2018 10:00 PM | |
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