Bridget DeChant, Bridget Beschen and Michelle Oakland each had seven kills for Portland (3-8/0-3) Friday, but San Francisco (7-5/2-1) held the Pilots to just .122 hitting in a 3-0 West Coast Conference win.
The Dons beat Portland 30-22, 30-21 and 31-29 behind Teresa Russell's 19 kills, eight digs and six blocks. Brittanie Budinger added 14 kills and seven digs.
Julie Allen and Kuulei Kamanao paced Portland with nine digs each, but the Pilots had just 37 kills in 123 total attacks, against 22 errors.
Sara Engstrom had 24 assists for the Pilots, pushing her career total to 661 and into sixth on the Portland career list.
The Pilots play at #24 Santa Clara on Saturday.