SEATTLE (AP) _ Senior forward A.C. Green scored 17 points, including 11 in the second half, as the Oregon State Beavers pulled away in the second half and upset the 15th-ranked Washington Huskies, 52-45, Saturday in Pacific-10 Conference action.

The Beavers improved their season record to 10-1 and their league mark to 2-0 while Washington slipped to 8-3 and 1-1. The loss also ended Washington's 18-game home court winning streak.

After leading 22-21 at halftime, Oregon State quickly opened up an 8-point lead, 33-25, as the Beavers outscored the Huskies 11-4.

Oregon State, which used only five players, including three guards, against the much bigger Huskies, spread out its offense the rest of the way. Washington never got closer than 7 points after that.

The Beavers were able to get Washington center Chris Welp and forward Paul Fortier into foul trouble in the second half.

Oregon State got into a free-throw situation early in the second hall and the Beavers hit 16 of 22 free throws after intermission. In the first half, Oregon State never went to the foul line.

Forward Detlef Schrempf paced Washington with 17 points while guard Clay Damon added 10.

In the first half, Oregon State led most of the way despite Washington's big edge in rebounding. The Huskies, however, turned the ball over 11 times in the first half.

Freshman guard Eric Knox and junior center Steve Woodside added 12 points each for the Beavers. Knox was effective in the first half with his perimeter shooting while Woodside sank 8 of 10 free throws in the second half.