Gabe York and Nick Johnson each scored 15 points, Rondae Hollis-Jefferson added 13, and the fourth-ranked Wildcats escaped with a 67-63 overtime victory against Utah on Wednesday night.
Arizona held the Utes to one field goal over the final five minutes and forced a critical turnover in the closing seconds.
The Wildcats (24-2, 11-2 Pac-12) beat Utah for the ninth straight time since a loss to the Utes in the 1998 NCAA tournament. Arizona also held onto sole possession of first place in the Pac-12, one game ahead of UCLA.
Brandon Taylor had 13 points and Delon Wright and Dallin Bachynski each scored 12 for the Utes (17-9, 6-8), who lost at home for the second time this season.