Final Score: Oregon 82, Washington State 80 (OT)

Los Angeles, CA (Sports Network) - Tajuan Porter exploded for 32 points to power the eighth-seeded Oregon Ducks to an 82-80 overtime victory over the ninth-seeded Washington State Cougars in the first round of the Pac-10 Conference Tournament.

E.J. Singler and Teondre Williams tallied 11 points apiece for Oregon (16-15), which will take on top-seeded California in Thursday's quarterfinal round.

Klay Thompson scored 20 points and Marcus Capers added 16 points in the loss for Washington State (16-15).

Oregon owned a 37-32 lead at intermission.

Porter, a senior, drove to the rim and missed a contested layup in the closing seconds of regulation. Fortunately for Oregon, Singler tipped the ball in at the buzzer to knot the score at 72-72 and force overtime.

In the extra session, Porter scored eight of his team's 10 points.

Porter's output tied the fourth-best single game scoring performance in the history of the Pac-10 Conference.

Washington State grabbed 19 offensive rebounds in the tilt, but 13 missed free throws clearly hurt the Cougars.

03/11 01:51:16 ET