CORVALLIS, Ore (AP) Stephen Thompson Jr. had 22 points, with four 3-pointers, six rebounds and seven assists as Oregon State defeated Washington State 90-77 on Thursday night.
Tres Tinkle had 21 points and four steals and Ethan Thompson added 20 points and six assists for the Beavers (12-6, 4-2 Pac-12).
CJ Elleby scored 21 points, all in the second half, and Robert Franks Jr. had 20 points and eight rebounds for the Cougars (8-11, 1-5).
Oregon State shot 52 percent and 10 for 27 on 3-pointers, while Washington State shot 50 percent and 12 for 28 from long range.