BERKELEY, Calif. (AP) -- Justin Cobbs scored a career-high 28 points, leading California to an 86-83 victory over Oregon on Thursday night.

Harper Kamp added 20 points for the Golden Bears (21-6, 11-3), while David Kravish scored 13 as Cal remained tied at the top of the Pac-12 with Washington, which beat Arizona State Thursday.

Devoe Joseph scored a career-high 33 points for Oregon. Carlos Emory scored 11 and Olu Ashaolu had 10 points for the Ducks (18-8, 9-5).

Cal trailed most of the second half, but beat the Ducks for the ninth straight time, its longest winning streak in series history. The Bears improved to 10-1 in their past 11 home games against Oregon, which hasn't won at Berkeley since Feb. 9, 2008.

Oregon returns to action this Sunday at 4:30 p.m. (PT) with a road game against Stanford.

POSTGAME NOTES

- The Ducks are 5-4 this season in true road games (4-3 in Pac-12 road games).

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Tony Woods (two blocks) tied the school record for blocks in a season. He now shares the record with Blair Rasmussen who tallied 42 blocks during the 1986-87 season.

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Devoe Joseph scored a career-high 33 points. It was his second 30-point game of the season. He is the only UO player to drop 30 in a game this season.

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Carlos Emory (11 points) reached double-figures in scoring for the fifth time in six games.

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E.J. Singler finished with eight points which snapped a streak of six straight games where he scored in double-figures. Singler is just five points shy of reaching the 1,000-point mark for a career.

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Olu Ashaolu (10 points) scored in double-figures for the eighth time this season.