SPRINGFIELD, Missouri (Ticker) -- Jackie Stiles scored 25 points on 9-of-19 shooting as No. 18 Southwest Missouri State posted a 69-61 triumph over 15th-ranked Oklahoma and avenged its last defeat.

Stiles grabbed six rebounds, handed out four assists, picked up two steals and made all six of her free throws in leading the Bears (6-2) to their season-high third straight win since an 89-82 loss at Oklahoma on December 1. Stiles had 31 points in that contest.

Tara Mitchem scored 13 points for Southwest Missouri State, which shot 45 percent (25-of-56) and forced 24 turnovers. The Bears ran out to a 32-20 lead, limiting the Sooners (5-3) to a dismal 7-of-23 shooting performance in the first half.

Stacey Dales scored 18 points but committed a whopping 11 turnovers for Oklahoma, which shot 39 percent (21-of-54) and held a 42-31 rebounding advantage.