LOS ANGELES (AP) -- Stanford's 3-point shooting has bailed the Cardinal out time and again this season.
It was especially good in the second half against UCLA.
Briana Roberson scored a career-high 21 points in her first start of the season and No. 11 Stanford rallied in the second half to win 79-70 for the Cardinal's 19th straight win against the Bruins.
Bonnie Samuelson added 21 points, including four 3-pointers, and Amber Orrange had 20 points before fouling out late for the Cardinal (14-5, 6-1 Pac-12). Roberson, a sophomore from nearby Fullerton, came in averaging 5.8 points. Kaylee Johnson had 10 points and 17 rebounds.
Stanford shot 58 percent from long-range in the second half, making seven 3-pointers. Five of them came in a big run that started the half.
"The team did a really good job of finding each other," Roberson said. "We did a good job just breaking down the defense."
Nirra Fields scored 22 points for the Bruins (8-10, 3-3), who fell to 0-7 against ranked teams this season and 0-14 against Top 25 teams since beating No. 10 Oklahoma last season. Jordin Canada added 14 points.
"In the second half they asserted their aggression," UCLA coach Cori Close said about the Cardinal. "They came out incredibly focused in the second half. They knew exactly what they were looking for."
Stanford was coming off a 60-57 loss to No. 13 Arizona State last weekend that ended its seven-game winning streak. The Cardinal have struggled early in games recently and the same thing happened against the Bruins, who led the entire first half.
That all changed in the second half, when Stanford improved its shooting to 52 percent.
"I wish we were more a first-half team sometimes," Cardinal coach Tara VanDerveer said.
The Cardinal had five 3-pointers in a 21-6 run that opened the half and gave Stanford a 58-46 lead. Orrange hit two treys in a row and Bonnie Samuelson added another before her sister Karlie Samuelson made two straight 3s to close the spurt.
"We did a really good job starting the second half running the floor and Amber did a good job reading the screens," Bonnie Samuelson said. "Bri and Amber were really pushing the ball. We were able to get some buckets in transition. We came together after halftime and said we're going to board really hard and run."
UCLA played catch-up the rest of the way. The Bruins closed within six on four straight points by Canada with 2:16 to play. But they were forced to foul down the stretch, when the Cardinal made 7 of 8 free throws to end the game.
"It was very physical," said Canada, a freshman playing Stanford for the first time. "We were hustling for every possession, we just didn't come up with it."
The Cardinal were held to 39 percent shooting and made just 4 of 14 3-pointers in the first half. UCLA scored the game's first eight points before Stanford tied it up. The Bruins responded with an 18-5 run, including 10 points by Fields, to take their largest lead, 26-13.
The Cardinal closed their deficit to 31-27 with a 14-5 run. UCLA went 3 of 7 from the free throw line over the final 4:11 of the half while Roberson scored seven of Stanford's final 10 points to trail 40-37 at the break.
TIP-INS
Stanford: Leading scorer Lili Thompson, who averages 15.2 points, was held to one point after going 0 for 6 from the floor. ... Roberson started in place of Karlie Samuelson. ... It's the first time since 2009 that Stanford doesn't have at least a share of first place in the Pac-12 this late in the season. That was also the last time that the Cardinal fell out of the top 10 in the AP rankings.
UCLA: Freshmen Canada, Recee Caldwell, Lajahna Drummer, Monique Billings and Kelli Hayes, along with junior Kacy Swain, were all suspended for the first half of last weekend's win against USC for violating curfew. Half of the Bruins' active players are freshmen. ... Caldwell was on crutches after tearing ligaments in her right knee. She will have surgery in the near future and be out at least two months.
BATTLE ON THE BOARDS
The Cardinal controlled the boards, 43-36, led by Johnson, who had 15 on the defensive glass.
"I'm disappointed in our ability to rebound the ball and come up with loose balls," Close said. "They were quicker to the ball. If you want to upset a good team like Stanford you have to control those things. We were late to the ball."
Stanford turned things around from the loss to Arizona State, when the Cardinal got outrebounded by 22 and by 15 on the offensive glass.
RARE TERRITORY
Stanford has five losses, more than it had in any of the past five seasons. The Cardinal haven't lost more than five games since 2006-06, when it dropped eight.
UP NEXT
Stanford: At Southern California on Sunday.
UCLA: Host California on Sunday.
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NOTES: Stanford overcame a double-digit deficit for the third time this season and sixth in the past five ... The 13-point comeback was the program's largest in 2014-15 ... Briana Roberson, Bonnie Samuelson and Amber Orrange combined to score 62 of Stanford's 79 points ... The trio went a combined 21-of-39 from the field (.538) ... Stanford made at least 10 3-pointers for the fifth time this season and first in conference play ... The 13-point comeback was the second time in as many years the Cardinal has erased big leads on its swing through Southern California ... At USC last Feb. 21, Stanford tied a program-record by overcoming a 19-point deficit (32-13; 6:08; 1st half) to defeat the Trojans, 64-59 ... Briana Roberson scored a career-high 21 in just her second career start ... Her other also came at UCLA on Feb. 23, 2014 ... Kaylee Johnson notched her fourth double-double of the season ... The freshman's 17 rebounds are only surpassed by her two 22-board games earlier this year ... Johnson also tied her personal best with four blocks ... Bonnie Samuelson scored at least 20 for the third time in her career ... She also made four 3-pointers for the fourth time in the last five games ... Samelson is now at 194 career makes from deep and alone in seventh place in Stanford history after passing Jennifer Azzi (191) and Lindsey Yamasaki (192) on Friday ... She also tied a career high with seven rebounds ... Amber Orrange handed out five assists to go along with her 20 points, now has 494 in her career and is just six away from becoming the seventh player in Cardinal history to reach 500 ... Orrange also moved into 27th on Stanford's all-time scoring list (1,199).