Betts, a 6-foot-7 sophomore transfer from Stanford, added 22 points, a career high, and 11 rebounds and Osborne had six three-pointers for 24 points plus 10 rebounds. The Bruins (3-0) had a dominating 56-24 rebounding advantage.

Londynn Jones had five threes and 21 points for UCLA. Kiki Rice, the fifth starter, had eight points and 11 assists.

Claire Knies scored 23 points for the Knights (0-2) and Cam Browning had 13.

UCLA scored the first 13 points and with Osborne hitting two threes in the final 30 seconds it was 26-9 after one quarter.

“We have unlimited ceiling,” UCLA coach Cori Close said. “… The gap between our potential and our habits keeps closing. We obviously have a lot of talent but let’s get tighter.”

Bellarmine matched the Bruins with a 24-point second quarter, which didn’t please Close.

“Our defense, we have a ways to go,” she said. “We have got to be able to be more consistent. … I just believe so much in what they can become but right now our consistency, our habits, have something to be desired.

“We’re going to have to learn into that. I told them, ‘Look, we can either have the discipline to get it done or I can make you really uncomfortable until we get it done. One of the two.’ ”

UCLA responded by outscoring Bellarmine 33-17 in the third quarter and 30-14 in the fourth.

The Bruins finish their four-game homestand against Princeton on Friday before going to the Cayman Islands to play Connecticut a week later.