WACO, Texas -- Kimetria Hayden scored 27 points to lead five players in double figures and Baylor (No. 19 ESPN/USA Today, No. 18 AP) beat No. 17 Oklahoma State 80-69 on Saturday night.
Brittney Griner scored 16, Morghan Medlock added 13 points, Shanay Washington had 12 points and 10 rebounds and Kelli Griffin scored 10 for Baylor (19-7, 6-6 Big 12).
Andrea Riley scored 38 for Oklahoma State (18-8, 6-6 Big 12) and Tegan Cunningham added 11. Riley has averaged 27.7 points against Baylor in the last three years and scored 43 in OSU's 78-65 win in Stillwater on Jan. 9.
Baylor led by as many as 14 in the first half, but Riley closed the period with three consecutive 3s to pull Oklahoma State within 42-33 at the break. Baylor made 16 of its 18 free throw attempts in the first half, while Oklahoma State was 2-for-2 from the line.
Riley opened the second half by scoring five consecutive points. Precious Robinson added one free throw to pull Oklahoma State within three, 42-39, with 17:24 left in the game. That was as close as OSU would get the rest of the game. Baylor eventually extended its lead to double figures, taking a 66-56 lead on two Medlock free throws with 5:28 remaining.
Early in the game, Baylor led 13-12 before going on an 11-0 run that included two baskets and two free throws by Hayden.