Nnemkadi Ogwumike had 27 points and nine rebounds to lead No. 3 Stanford to a 78-45 win over Oregon State on Thursday night.

Chiney Ogwumike added 10 points and Joslyn Tinkle had seven points and 14 rebounds for Stanford (23-1, 14-0 Pac-12), which led by 20 at halftime and as many as 38 in the second half.

Alyssa Martin scored 11 points for Oregon State (17-8, 8-6), which had won six straight.

The Cardinal have won 20 straight games this season, 25 in a row against Oregon State and 71 consecutive games versus Pac-12 teams.

Both teams struggled early on offense. Stanford led 8-2 after Chiney Ogwumike's basket a little more than seven minutes into the game.

But the Cardinal soon pulled away. Lindy La Roque scored the last five points of a 15-2 run that put Stanford ahead 23-7. Nnemkadi Ogwumike later scored six straight points for a 31-9 Cardinal lead.