Marcus Williams scored 21 points and Ivan Radenovic had 17 to help No. 7 Arizona defeat California, 94-85, on Thursday night in Tucson for its 10th consecutive victory.
Arizona, 10-1 overall and 1-0 in the Pacific 10 Conference, is unbeaten since losing its opener at Virginia Nov. 12, the school's longest winning streak since 2003.
Williams made all eight of his shots and Radenovic made six of seven. The Wildcats shot 60.3% in the teams' Pac-10 opener.
The Wildcats, who led, 51-33, at halftime, put the game away with a 23-12 run to open the second half.
Freshman Ryan Anderson, the conference's No. 2 scorer, led California (8-5, 0-1) with 16 points.
The Golden Bears played without junior center DeVon Hardin, who broke his left foot Dec. 19 and is expected to be out eight to 12 weeks. Hardin leads active Pac-10 players with 95 blocks.
Stanford took the lead for good late in the first half, withstood an Arizona State rally midway through the second, then pulled away for the victory. The Sun Devils (6-6, 0-1) moved to within six points, 43-37, with 13:58 to play. But the Cardinal responded with a 9-0 run to build a 52-37 lead with 8:22 left and Arizona State didn't get closer than 11 again.
The Sun Devils dropped to .500 for the first time under Sendek, who left North Carolina State to take the Arizona State job.
No. 20 Oregon 76, Portland 49 -- Maarty Leunen had 24 points and 14 rebounds in a nonconference victory for the host Ducks, one of four Division I teams still undefeated. They are 12-0 for the first time since the 1946-47 season.