Reid Travis had 19 points and 13 rebounds, helping Stanford roll over rival California 76-58 in the first round of the Pac-12 tournament on Wednesday.
Stanford (18-14) shot well early to build a double-digit lead and shut the Bears down defensively to earn a spot in Thursday's quarterfinals against fourth-seeded UCLA.
The fifth-seeded Cardinal held Cal to 28 percent shooting and had a 30-18 advantage in the paint. Travis hit 7 of 11 shots and Dorian Pickens scored 16 points.
No. 12 seed Cal (8-24) closed out a difficult first season under Wyking Jones with its seventh straight loss and 16th in 17 games.
Darius McNeill led the Bears with 19 points, making 5 of 10 from 3-point range. The rest of the Bears combined to go 2 of 15 from the arc.
Colorado 97, Arizona State 85: McKinley Wright IV had 20 points and 11 assists, and Colorado put a dent in Arizona State's NCAA Tournament hopes with a 97-85 victory over the Sun Devils in the opening round of the Pac-12 tournament on Wednesday.
Colorado (17-14) made 13 of 21 from 3-point range and took control of a close game with a 15-1 run midway through the second half.
The Buffaloes shot 54 percent overall and made 18 of 20 free throws to earn a spot in Thursday's quarterfinals against No. 15 Arizona.
Wright also had eight rebounds and Dominque Collier had 17 points for Colorado.
Arizona State (20-11) had a pair of long stretches without a field goal in the second half and went 12 for 21 from the free throw line to lose a game it needed to win.
Remy Martin had 20 points to lead the Sun Devils, who may have an anxious Selection Sunday after being ousted so early in the Pac-12 tournament.
Oregon State 69, Washington 66 OT: Drew Eubanks scored 19 points, Stephen Thompson Jr. added 14 and Oregon State outlasted Washington 69-66 in overtime on Wednesday night in the opening round of the Pac-12 tournament.
Oregon State went up 66-64 in overtime on Tres Tinkle's two free throws and Washington tried to set up a shot to tie, but David Crisp threw the ball out of bounds. Eubanks hit 1 of 2 free throws and Crisp scored on a layup with 3.1 seconds left to pull the Huskies within two.
Tinkle hit two more free throws with 2.5 seconds left and Crisp got a good look at a tying 3-pointer, but it caromed off the back of the rim.
Oregon State (16-15) moves on to face No. 2 seed USC in the quarterfinals on Thursday.
Oregon 64, Washington State 62 (OT): Payton Pritchard scored underneath with 28 seconds to go in overtime to give the Ducks (20-11) a 63-62 lead, and they held on. The Cougars (12-18) led for most of the game, but in the end suffered their 10th consecutive Pac-12 tournament loss.
at T-Mobile Arena, Las Vegas
No. 1 Arizona vs. No. 8 Colorado, noon (Pac-12)
No. 4 UCLA vs. No. 5 Stanford, 2:30 p.m. (Pac-12)
No. 2 USC vs. No. 10 Oregon State, 6 p.m. (Pac-12)