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. But the Beavers outrebounded the Cougars 39-24 and grabbed 15 offensive boards.
The Beavers took a 49-33 lead after a 9-0 run, capped by a Stephen Thompson Jr. Euro step and lay-in with 1:32 left in the first half.
Oregon State led 52-36 at the break.
Elleby got hot and helped whittle the deficit early in the second half. A 7-0 Cougars surge, with Jervae Robinson scoring five points, trimmed the margin to 67-58 with 12:35 remaining. But that was as close as Washington State would get.
Kylor Kelley finished with 10 points, seven rebounds and three blocks for Oregon State.
BIG PICTURE
Washington State: Franks fouled out with 2:02 left on a charge. . The Cougars have won only one game in the last month.
Oregon State: Kelley needs four blocks to break the program record of 73 in a season, set by Eric Moreland in 2012-13. The junior college transfer leads the nation with 3.94 blocks per game.
UP NEXT
Washington State: At Oregon on Sunday.
Oregon State: Hosts Washington on Saturday.