LOS ANGELES — When the weekend began, Stanford had a chance not only to enhance its status as a contender in the Pacific-12 Conference but also to end a 13-year losing streak.

As the weekend concludes, the Cardinal finds itself three games — and now two teams — behind first-place Arizona, courtesy of an 89-73 loss to UCLA in front of 10,519 at Pauley Pavilion.

Stanford (11-11, 5-4) suffered its third consecutive defeat while extending its losing streak at Pauley Pavilion to 12 games since Jan. 20, 2005.

“We found the recipe, we thought,” freshman Daejon Davis said about the Cardinal’s five-game winning streak in Pac-12 play. “I guess we’ve got to get back in the lab, find out how we were so successful and just bring that back.”

Davis amassed career highs of 23 points and 10 assists. Dorian Pickens added 16 points and made four 3-point baskets to move into 12th place on the Cardinal’s career list in that category. Yet individual achievements proved insufficient.

“We really struggled defending,” Stanford coach Jerod Haase said. “UCLA has a ton of weapons and we really didn’t defend tonight. Our ineffectiveness on defense let to transition baskets.”

The Bruins’ zone defense made the Cardinal’s offense equally ineffective.

“We really got pushed up high on the floor,” Haase said. “We had a lot of sloppy passes and silly mistakes.”

UCLA (15-7, 6-4) made four 3-point shots in the first 2 minutes, 42 seconds to build a 14-6 lead. The Cardinal responded with a 9-0 surge to move ahead, 15-14, before increasing the margin to 27-24 with 7:30 left in the first half.

But Aaron Holiday led a 14-0 blitz that enabled the Bruins to regain a 38-27 advantage with 3:57 before halftime. Holiday had seven points, one rebound, a steal and an assist. Stanford, meanwhile, missed four successive shots and failed to secure a rebound at its own glass.

The Bruins then used an 8-0 spurt early in the second half to build a 62-42 advantage with 14:23 to play, and led by as many as 22 points.

“We were slow in every aspect,” Davis said. “We’ve just got to be able to keep it together and maintain our energy.”

Michael Humphrey contributed 12 points while Reid Travis finished with 11 points and seven rebounds. Holiday led four Bruins in double figures with 21 points.