(Corvallis, OR)  --  Tres Tinkle scored 26 points as the Beavers beat the Vikings 81-76 in Corvallis.  Ethan Thompson had 18 points and Zach Reichle had 16 as Oregon State ran its winning streak to five.  Holland Woods had 23 points and seven rebounds for Portland State in the loss, which fell to 3-and-6.  The Vikings are off until Friday when they'll face Cal State Northridge at home.  The Beavers are off until December 14th when they'll host Arkansas Pine Bluff.