CORVALLIS, Ore. (AP) - Allonzo Trier scored 18 points and No. 5 Arizona roared to life in the second half to defeat Oregon State 71-54 on Thursday night.
Dusan Ristic had 10 points and six rebounds for the Wildcats (21-2, 10-0), who have won 15 straight games.
Stephen Thompson Jr. had 16 points and five steals and Drew Eubanks added 12 points for the Beavers (4-19, 0-10).
Arizona went on a 23-2 run in the second half to take a 55-36 lead with 8:23 remaining. The Wildcats held the Beavers scoreless for nearly 6 minutes during the surge.
Arizona led by eight points early, but Oregon State battled back and went ahead 23-21 after a 3-pointer by Thompson with 4:53 left in the first half.
The Beavers lead 29-27 at halftime.
Oregon State shot 50 percent in the first half, but was limited to 34.6 percent in the second half. Arizona shot 53.8 percent in the second half and outrebounded the Beavers 39-26 for the game.