Oregon St. 68, Oregon 53
EUGENE, Ore. (AP)
Patricia Bright scored 14 points and Alyssa Martin added 13 for the Beavers (18-9, 8-8 Pac-12).
Amanda Johnson, in her last home game for Oregon (14-14, 6-10), had 13 points and 10 rebounds.
Oregon State's victory was the third straight against Oregon, the Beavers' longest winning streak against the Ducks since also winning three straight in 1993-94.
Oregon State trailed 29-22 at halftime and 40-32 nearly nine minutes into the second half before Bright sparked an 18-1 run that put the Beavers up 50-41 with 5:17 remaining.
Bright scored six of the first 11 points during that stretch and Marchbanks finished off the victory by going 12 of 14 from the free-throw line in the final 4:30.