Ogwumike leads No. 4 Stanford women to 19th straight win with 70-64 victory against No. 21 Cal

Stanford's Mikaela Ruef drives toward the basket past California's Courtney Range during the first half of an NCAA college basketball game, Thursday, Jan. 30, 2014 in Berkeley, Calif. (AP Photo/George Nikitin) (The Associated Press)

California's Reshanda Grey reaches for a loose ball as Stanford's Sara James watches during the first half of an NCAA college basketball game, Thursday, Jan. 30, 2014 in Berkeley, Calif. (AP Photo/George Nikitin) (The Associated Press)

STANFORD, Calif. – Chiney Ogwumike had 23 points and 12 rebounds and No. 4 Stanford held off a late charge by 21st-ranked California for a 70-64 win Thursday night in the first of two meetings between the rivals over a four-day span.

Karlie Samuelson came off the bench to score 12 of her 14 points in the first half for Stanford (20-1, 9-0 Pac-12), including a baseline 3 to beat the halftime buzzer. The Cardinal led by 30 in the second half before the Golden Bears fought back to make things interesting down the stretch.

Brittany Boyd led Cal (14-6, 6-3) with 25 points and Afure Jemerigbe added 18 just more than a year after the Bears won 67-55 on Stanford's home floor on Jan. 13, 2013, to split the season series and help them grab a share of the Pac-12 Conference crown with the Cardinal. That also snapped an 81-game home winning streak for Stanford at Maples Pavilion against conference opponents.