Rising Star Sienna Betts Shines on International Stage and UCLA Championship Run

International Breakout

On May 18, 2024, 16‑year‑old Sienna Betts earned a spot on the United States U‑18 women’s national team for the FIBA AmeriCup. In the tournament she posted 13.2 points, eight rebounds and 1.8 blocks per game, leading the field in efficiency with a rating of 19.8 while playing just 16.9 minutes per contest.

Freshman Year at UCLA

Betts entered UCLA as a five‑star recruit and immediately became a key reserve for the Bruins’ women’s basketball program. Throughout the 2025‑26 season she averaged 14.7 minutes off the bench, contributing 6.5 points and 4.2 rebounds per game. Her impact was highlighted when she stepped in for senior sister Lauren during the national championship game in Phoenix on April 5, 2026, helping the Bruins clinch the title.

Sibling Dynamics and Future Outlook

Playing alongside older sister Lauren—projected to be a first‑round WNBA pick—has given Sienna a unique apprenticeship. Both sisters have expressed excitement for the day they compete on separate teams, while coaches anticipate a larger role for Sienna next season as she builds on her international experience and championship poise.