Wallace had 16 points and 11 rebounds, while Kravish had 14 points and 11 rebounds for the Golden Bears (20-9, 12-5 Pac-12), who are in the midst of their longest winning streak in a decade.
Justin Cobbs added 16 points and five assists while helping California clinch a first-round bye in the conference tournament. The Bears won despite an off-night from leading scorer Allen Crabbe, who was held to eight points while being saddled with foul trouble.
Xavier Johnson had 14 points and seven rebounds for Colorado (19-9, 9-7), which lost for only the third time in 11 games.
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.