 | | Portland | 72 | | 4-14 |  | | Loyola Marymount | 78 | | 5-13 | | Mar 2, 2018 9:00 PM | |  | | Pepperdine | 85 | | 2-16 |  | | Santa Clara | 69 | | 8-10 | | Mar 2, 2018 11:30 PM | |
| | | Loyola Marymount | 69 | | 5-13 |  | 6 | Gonzaga | 83 | | 17-1 | | Mar 3, 2018 3:00 PM | |  | | San Diego | 79 | | 9-9 |  | | BYU | 85 | | 11-7 | | Mar 3, 2018 9:00 PM | |  | | Pacific | 70 | | 9-9 |  | | San Francisco | 71 | | 9-9 | | Mar 3, 2018 11:00 PM | | | | Pepperdine | 66 | | 2-16 |  | 20 | Saint Mary's | 69 | | 16-2 | | Mar 3, 2018 11:59 PM | |
| | | San Francisco | 60 | | 9-9 | | 6 | Gonzaga | 88 | | 17-1 | | Mar 5, 2018 9:00 PM | | | | BYU | 85 | | 11-7 | | 20 | Saint Mary's | 72 | | 16-2 | | Mar 5, 2018 11:30 PM | |
| | | BYU | 54 | | 11-7 | | 6 | Gonzaga | 74 | | 17-1 | | Mar 6, 2018 9:00 PM | |
|
