Kelly Olynyk scored 19 points, Gary Bell Jr. hit four 3-pointers and No. 2 Gonzaga survived a late Brigham Young rally for a 70-65 victory Thursday night and its 10th outright conference title.
The Bulldogs (28-2, 15-0 West Coast Conference) host Portland on Saturday and a win there could mean Gonzaga's first-ever No. 1 ranking.
Gonzaga led by 11 points with 10:51 left but BYU fought back.
Consecutive 3-pointers by Brock Zylstra, another by Craig Cusick and two free throws by Brandon Davies tied it at 60 with 4:18 remaining.
Olynyk hit a key jumper down the stretch and Kevin Pangos made two free throws to help seal it.
BYU had one final chance with 6.6 seconds remaining and down three points but Gonzaga fouled Craig Cusick before he could attempt a 3.
Tyler Haws had 19 points for BYU (20-10, 9-6).