Three biggest upsets in Pac-12 tournament history (not including Arizona)Β
3. No. 10 Lamar def. No. 2 Oregon State, 1980. It was the first of four first-round shockers for Ralph Millerβs Beaver teams, losing 81-77 to Lamar. Later, OSU lost to No. 12-seeded Ball State in 1990 and No. 11 Evansville in 1989. Worse, the No. 1-seeded Beavers were knocked out in the second round in 1981 by Kansas State. OSU had a bye in the first round that year.Β
