LAS VEGAS (AP) — Kat Tudor scored 24 points and Mikayla Pivec scored 17 and No. 14-ranked Oregon State trounced Washington State 82-55 in the first round of the Pac-12 Conference Tournament. Oregon State, seeded sixth, advanced to play No. 3-seed and seventh-ranked Stanford on Friday. The Beavers have won four straight following a four-game skid. Ula Motuga's 3-pointer gave the Cougars their only lead at 6-5 with 7:50 left in the first quarter. With the score tied at 10, Taylor Jones made a layup nearly four minutes later and Oregon State closed the quarter with a 19-2 run. The Beavers went to intermission ahead by 25.