Oregon starter Brando Tessar limited Arizona to three hits in seven shutout innings and the Ducks had two key homers to complete a three-game sweep with a 5-1 victory in Eugene, Oregon, on Sunday.
The Wildcats (18-28, 7-17 Pac-12) have lost eight of their last nine.
Mitchell Tolman and Shaun Chase both homered for Oregon. Chase had three homers in the series.
Arizona starter Tyger Talley (1-2) held the Ducks (34-13, 13-8) to a run and five hits over seven innings. He struck out five and walked a pair.
The only run off Talley was Tolman’s solo shot to lead off the sixth inning.
Chase added a grand slam in the eighth to put the game out of reach.