The win moves the Waves (9-18, 3-12 West Coast) within a half-game of Portland (6-21, 3-11) for seventh place in the West Coast Conference as the two teams try to avoid the 8-9 seed play-in game for the conference tournament.
Joshua Lowery added 14 points for Pepperdine, and Corbin Moore had 10 points and eight rebounds.
The Waves used an 11-0 run to take their largest lead of the game, 47-34, with 11 minutes to play. Portland cut the deficit to 58-55 with 3:20 remaining, but didn't score again until 35 seconds were left as Pepperdine built the lead back to 65-55.
- West Coast Conference