With a 65-56 win, Arizona improved to 20-0 and 7-0 in the Pac-12, setting the mark for the longest winning streak in school history.
Nick Johnson scored 22 points, including eight during a decisive 18-4 burst to help Arizona finally break free of a Utah team coming off Thursday's loss at Arizona State.
Freshman Aaron Gordon missed 10 of 13 from the field but caused havoc everywhere else. Gordon and classmate Rondae Hollis-Jefferson combined for 12 of UA's 20 offensive rebounds.