Nick Johnson scored 25 points and No. 3 Arizona beat Oregon State 74-69 Wednesday night in a back-and-forth game that wasn't decided until the final minutes.
Kaleb Tarczewski added 12 points and nine rebounds for the Wildcats (28-2, 15-2 Pac-12), who had already clinched the regular-season conference title. The Wildcats have won five straight with their last loss on Feb. 14 at archrival Arizona State.
Roberto Nelson scored 25 points and Devon Collier had 14 points and 11 rebounds for the Beavers (15-14, 7-10).