The Ducks' quickness, length and bounce shined through with how they stuck around in a game they only led for less than 90 seconds of the first half.
The Beavers shot 39.3 percent overall but 42.9 percent from 3-point range. Also in double-figures for Oregon State are Stephen Thompson (16.5 PPG) and Drew Eubanks (13.8 PPG; 6.7 RPG). The Beavers play No. 11 Arizona State at 4 p.m. (MT) Saturday.
However, the official scorer missed two points along the way, and Altman's appeal to the game officials went unheard until halftime when they put the points back on the board, although at first the statistics showed OR ahead 42-41.
Slogging the game out for the first 23 minutes, the Wildcats finally showed some life when they artfully turned a pair of OSU turnovers into dunks and their first lead of the game three minutes into the second half. That ignited the 16-3 run that finally put the game under control for the Wildcats. The last time OR had defeated a team ranked No. 11 OR higher on the road was a 79-77 win at 10th-ranked Arizona on January 14, 2007.
The next one almost brought the house down.
However the Ducks refused to go away. The Beavers went back ahead 35-31 with its defense continuing to throw off UA offensively.
Malachi Flynn led Washington Statewith 24 points, including seven three-pointers.
It was back and forth after that until Ayton's rebound basket put Arizona ahead for good, 40-39 with 7:33 left.
Playing with Ayton for only 11 first-half minutes because of foul trouble, Arizona never led in the first half and trailed 22-21 after some fruitless final minutes on both sides.
RALEIGH, N.C. - Omer Yurtseven scored a career-high 29 points, and North Carolina State held on to beat Clemson after Gabe DeVoe missed the third of three free throws with 0.2 seconds left that would have forced overtime.
It was the Wildcats' lowest-scoring first half of the season, with nine fewer points than even in any of their first halves in three losses in the Bahamas.
Points in the paint were controlled by OR, with 38 points, compared to Arizona State's 16. Their previous low came on December 5 against Texas A&M, when the Aggies led 31-29 at halftime.
The Wildcats fell behind right away, hitting just one of their first six shots while OSU took an early 12-2 lead.
Utilizing the sheer size of MiKyle McIntosh (12 points and 13 rebounds), the Ducks were able to pound the glass in the second half and unleash grit and grind game-plan.
First, Allonzo Trier - who heated up in the second half and finished with 21 points - over Ethan Thompson.
Colorado is joined by Washington (12-4, 2-1 Pac-12), Oregon State (10-5, 2-1 Pac-12), Arizona, Utah (10-5, 2-2 Pac-12), USC (11-6, 2-2 Pac-12), and Stanford (8-8, 2-1 Pac-12) in a log jam at two wins apiece, with UCLA sitting atop the conference at 3-1.