Barrington Hargress had 23 points, Sebastian Rancik came off the bench to post a double-double and Colorado beat Arizona State 78-70 on Saturday night. Hargress made 10 of 15 shots with a 3-pointer for the Buffaloes (14-10, 4-7 Big 12 Conference), who finished off a season sweep of the Sun Devils (12-12, 3-8). Rancik, a 6-foot-11 sophomore, totaled 17 points and a career-high 11 rebounds for his first double-double.