Colorado's Spencer Dinwiddie, right, blocks a shot by Oregon's Johnathan Loyd on Thursday night. Dinwiddie scored 17 points in the Buffaloes' win.


BOULDER, Colo. - Xavier Johnson had a career-high 22 points, Spencer Dinwiddie added 17 and Colorado beat No. 19 Oregon 76-53 on Thursday, completing a season sweep and thwarting the Ducks' bid to gain a share of the Pac-12 Conference title.

The Buffaloes (20-9, 10-7) played without the nation's leading rebounder, Andre Roberson, who sat out with a viral illness. Gone with the athletic junior forward were 11.5 rebounds and 10.8 points a game.

Arsalan Kazemi, Jonathan Loyd and Ben Carter each had 10 points for Oregon (23-7, 12-5), which fell into a first-place tie with UCLA. The Ducks hold the tiebreaker after beating the Bruins in their only meeting in January. Oregon can wrap up at least a share of their first league crown since 2002 - along with the No. 1 seed for the Pac-12 tournament - with a win at Utah on Saturday.

Little-used backups Xavier Talton and Jeremy Adams played big minutes as they helped pick up the slack in Roberson's absence. Adams' thunderous dunk early in the second half gave the Buffs a 52-29 lead.

Cal is a half-game behind Oregon and UCLA, while Arizona is a game behind. If UA wins Saturday and Oregon and UCLA lose, there will be a four-way tie atop the league.

• Utah 72, Oregon State 61: In Salt Lake City, Jordan Loveridge scored 17 points and collected 12 rebounds for his fourth double-double of the season to help the Utes (12-17, 4-13) win.

• No. 10 Michigan St. 58, No. 22 Wisconsin 43: In East Lansing, Mich., Keith Appling scored 14 of his 19 points in the second half to help Michigan State pull away.

The Spartans (23-7, 12-5) moved into a three-way tie for second with Michigan and Ohio State. The trio trails conference-leading Indiana with one game left in the regular season.


• Washington St. 48, Arizona St. 41: In Seattle, Lia Galdeira scored 17 points, Dawnyelle Awa added 10 and the No. 8-seeded Cougars (11-19) won in the opening round of the Pac-12 Conference tournament.

• USC 64, Oregon State 57: In Seattle, Ariya Cook scored 17 points and Cassie Harberts had 16 points and 14 rebounds to lead seventh-seeded USC over 10th-seeded OSU.