UCLA forward Sienna Betts, center, and her sister, UCLA center Lauren Betts (51), talk during the national anthem before a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA center Lauren Betts, top, grabs a rebound over Cal Poly forward Charish Tho mpson during the second half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA guard Charlisse Leger-Walker, left, and Cal Poly guard Alana Goosby battle for possession of the ball during the first half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA forward Angela Dugalić, right, blocks a shot from Cal Poly forward Nora Perez during the first half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA head coach Cori Close yells instructions to her players from the sideline during the first half of a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA forward Gabriela Jaquez, right, drives to the basket as Cal Poly guard Alana Goosby defends during the second half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) Cal Poly guard Gabby Robinson drives to the basket as UCLA center Lauren Betts defends during the first half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA forward Sienna Betts looks to shoot as Cal Poly forward Gillian Bears defends during the second half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA forward Sienna Betts attempts a free throw during the second half of a game against UCLA on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) Cal Poly guard Alana Goosby takes a shot as UCLA forward Sienna Betts, left, defends during the first half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA guard Kiki Rice drives to the basket as Cal Poly forward Avery Knapp defends during the second half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) Cal Poly guard Arissa Garcia, top left, UCLA guard Gianna Kneepkens, bottom, and Cal Poly forward Gillian Bears (14) battle for possession of the ball during the first half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) Cal Poly head coach Shanele Stires yells instructions from the sideline during the first half of a game against UCLA on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA guard Gianna Kneepkens looks to shoot as Cal Poly guard Arissa Garcia defends during the second half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) Cal Poly forward Charish Thompson takes a shot during the first half of a game against UCLA on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA center Lauren Betts gestures after a play during the first half of a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA forward Sienna Betts looks on from the bench during the second half of a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) Cal Poly guard Jordan Billing looks to pass the ball as UCLA guard Gianna Kneepkens defends during the first half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA guard Charlisse Leger-Walker shoots during the second half of a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA guard Charlisse Leger-Walker celebrates after drawing a foul call during the second half of a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA forward Sienna Betts lines up a shot as Cal Poly forward Nora Perez defends during the second half on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA head coach Cori Close yells instructions to her players from the sideline during the first half of a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA forward Sienna Betts, right, reacts after shooting a free throw during the second half of a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA freshman forward Sienna Betts (16) drives to the basket as Cal Poly forward Charish Thompson (32) and guard Vivian Franklin (55) defend during the second half on Tuesday night at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA center Lauren Betts, right, cheers after her sister, UCLA forward Sienna Betts scored during the second half of a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA forward Sienna Betts runs down the court during the first half of a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA guard Kiki Rice, left, reacts to an official’s call during the first half of a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA freshman forward Sienna Betts warms up before making her college debut in a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA center Lauren Betts, left, and her sister, freshman forward Sienna Betts (16) warm up before a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA players talk during a break in the second half of their game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA center Lauren Betts runs on to the court during player introductions before a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA guard Kiki Rice runs on to the court during player introductions before a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) UCLA freshman forward Sienna Betts warms up before making her college debut in a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) Show Caption1 of 33UCLA forward Sienna Betts, center, and her sister, UCLA center Lauren Betts (51), talk during the national anthem before a game against Cal Poly on Tuesday, Dec. 16, 2025, at Pauley Pavilion. (AP Photo/Caroline Brehman) Expand LOS ANGELES — Tuesday night was one to picture, frame, and remember in the Betts household. Lauren Betts almost single-handedly took down Cal Poly in a 115-28 shellacking at the hands of No. 4 UCLA at Pauley Pavilion, the senior center recording 20 points and 10 rebounds, one of five Bruins to score in double figures. UCLA was the clear favorite Tuesday – loud 64½-point favorites, in fact – but the memory to savor arrived with 4:14 remaining in the first quarter. The long wait was over. Freshman forward Sienna Betts – the No. 2 recruit in the class of 2025 according to ESPN’s 2025 SportsCenter NEXT 100 – checked in alongside her older sister to make her college debut. Sienna Betts and Lauren Betts; three years apart, but now together on the Nell and John Wooden Court, becoming the first siblings to play at the same time for the Bruins since Rebekah Gardner and Rhema Gardner from 2010-2012. Sienna Betts, who has represented the United States multiple times on the youth international circuit, winning two gold medals in FIBA events, suffered a lower left-leg injury during a mid-October preseason scrimmage against UC Riverside. A month and a half later, after being cleared for practice last week, Sienna Betts made her mark with her first positive recorded statistic. Drawing a double-team in the post, Sienna Betts, returning from a lower-left leg injury, found Lauren Betts on the opposite side of the key, where the reigning Naismith Defensive Player of the Year deposited the ball into the basket with 6:23 left in the second quarter to give UCLA a 38-16 lead. The moment, ironic given how often the elder sister is double- or triple-teamed in the paint, marked Sienna Betts’ first assist and became the second converted shot of a 27-0 run to bring the Bruins to a 44-point halftime lead. “Sienna is an elite passer,” Coach Cori Close said. “Her and Lauren have an uncanny ability to know how and when they need to find each other.” When it came to Sienna Betts’ first points, sinking one of two free throws (UCLA’s 39th point), it was Lauren Betts who fed her the ball before drawing contact. Sienna Betts finished with five points and two assists across 10 minutes, her first-career basket coming on a fadeaway mid-range look to give the Bruins (10-1 overall, 1-0 Big Ten) an 80-point lead (101-21) in the fourth quarter. “I just wanted her to just have some joy, to just get her feet wet,” Close said. “She just needed to get the experience today, and I just wanted her to sort of take the pressure off and take a deep breath and try to enjoy it. Close added that she wanted Sienna Betts to give herself some grace as the transition from high school through her injury and now playing, continues in the games ahead. Yes, there were some clunky plays – such as when the 6-foot-4 forward dribbled and pivoted her way into multiple tie-ups for jump balls. But the space Sienna Betts created on the floor alongside Lauren Betts became paramount as Cal Poly chucked up shot after shot, often away from the paint as the Bruins’ size turned too substantial to play through. Cal Poly (2-8, 0-2 Big West) finished with just 12 points in the paint, shooting 27.5% from the field overall. “It wasn’t going to be perfect,” Close said after the game. “I could tell she was playing with nerves, but I am so excited about what she brings to our team.” The wait was worth it for both sisters, as an early moment said it all. When senior guard Gabriela Jaquez earned a trip to the free-throw line with 4:04 in the first quarter, the siblings were lined up across from each other. They chatted – what was said between the sisters was unknown – but Sienna Betts and Lauren Betts shared smirks as Jaquez let her shots fly. “I was just so happy to be on the court with her,” Lauren Betts said. “I know that this process hasn’t been easy, but to just have that moment with her, this is something that we’ve grown up just dreaming about.” Dec. 16, a day on which UCLA won by its largest point differential (87) since December 1976, its widest margin of victory in the NCAA era, proved to be a day they can always look back on. BY THE NUMBERS Senior guard Kiki Rice led all scorers with 23 points, eight rebounds and four assists, while graduate student guard Gianna Kneepkens shot 4 for 7 from 3-point range on her way to 19 points. … After trailing 25-13 after one quarter, Cal Poly was outscored 35-3, 31-5 and 24-7 in the final three quarters. Related Articles UCLA’s Sienna Betts could return against Cal Poly Alexander: UCLA women boat-race Oregon — and they’ll hear about it Lauren Betts plays up to billing in UCLA’s rout of Oregon UCLA’s Lauren Betts adjusting as the center of attention Swanson: Gabriela Jaquez’s ascension raises UCLA’s ceiling ...read more read less