Washington State (3-3) led 23-16 at halftime and started the second half on a 9-0 run.
Woolridge and Mike Ladd hit back-to-back 3-pointers to spark a 17-2 run to put the game out of reach at 56-28. The Cougars missed only two shots during the stretch. Woolridge finished the game with four of Washington State's eight 3-pointers.
The Golden Lions were only 6 of 26 (23.1 percent) from the field in the first half, 15-50 (30 percent) for the game. Washington State ended the game 23-48 from the field (47.9 percent).
Terrell Kennedy led Arkansas-Pine Bluff with nine points.
This was the fifth of 11 games on the road for the Golden Lions (1-4). They don't play a home game until January.
Former Kentucky guard Ed Davender, the only Wildcat with at least 1,500 points and 400 assists, has died. He was 49.
Guard Naz Mitrou-Long, whose 2015-16 season ended in December due to hip problems, has been granted a hardship waiver for the coming season, Iowa State said.
As the Sooners look to life without superstar Buddy Hield and his sidekicks, it's clear their unseasoned players will need to grow up fast.