LOS ANGELES (AP) Andre Roberson had 20 points and 11 rebounds - his third double-double this season against Utah - and Colorado pulled away in the second half to win 53-41 in the opening round of the Pac-12 tournament on Wednesday night.

Carlon Brown added 15 points and Spencer Dinwiddie 10 for the sixth-seeded Buffaloes (20-11), who notched consecutive 20-win seasons for the first time, having won a school-record 24 games last year in the Big 12. Coach Tad Boyle picked up his 100th career win.

Colorado advanced to a quarterfinal game Thursday against No. 3 seed Oregon at Staples Center. The Ducks (22-8) had a first-round bye.

Jason Washburn led the 11th-seeded Utes (6-25) with 11 points, their only player in double figures. They finished 0-13 away from home in their first season in the Pac-12, including 0-4 at neutral sites under first-year coach Larry Krystkowiak. He presided over the school's first season of 20 or more losses.