Marie Gulich made a go-ahead layup with 14.4 seconds left and No. 10 Oregon State clinched a share of the Pac-12 regular-season title with a 50-47 victory over No. 8 Stanford on Friday night. Sydney Weise hit five three-pointers and led the Beavers (26-3, 15-2 Pac-12) with 22 points, and Kolbie Orum added 12 points and six rebounds. Last season, the Beavers claimed a share of the regular-season title before winning the Pac-12 tournament and advancing to the NCAA Tournament’s Final Four. Stanford extended its lead on McCall’s layup, but Wiese hit her fifth three-pointer to tie it at 43-43. Karlie Samuelson missed a three-point shot on the other end and Gulich made free throws for the final margin. The Beavers also beat the Cardinal — 72-69 in double overtime — on Jan.