STILLWATER, Okla. (AP) -- Danielle Robinson scored a career-high 36 points and No. 13 Oklahoma beat Oklahoma State (No. 11 ESPN/USA Today, No. 10 AP) 77-66 on Saturday, the Sooners' 21st win over their Bedlam rival in their last 22 meetings.
In a showdown of two of the Big 12's -- and nation's -- top point guards, Robinson outdueled Oklahoma State's Andrea Riley, the conference's leading scorer, who led the Cowgirls with 30 points.
Despite coach Kurt Budke breaking out his rarely seen orange blazer as a motivational ploy, Oklahoma State (18-5, 6-3 Big 12) lost its first home game ever as a top-10 team. Oklahoma State remained tied with the Sooners for second place in the Big 12 behind undefeated No. 4 Nebraska. The Cowgirls lost by 21 at Nebraska on Wednesday.
Oklahoma (16-6, 6-3), which lost by 18 at home to Texas on Wednesday, avoided what would have been its first losing streak of the season.
The lead changed hands 11 times and neither team led by more than seven points until the final two minutes.
The Sooners won because Robinson made big plays down the stretch while Riley mostly misfired.
Riley's medium-range jumper with 3:41 left pulled Oklahoma State within 63-61, but the Cowgirls didn't score again until her long 3-pointer with 26 seconds left. In the interim, Oklahoma scored 10 straight points -- eight by Robinson -- and blew open what had been a tight game.
With Oklahoma State down 65-61, Riley missed the front end of a one-and-one free-throw opportunity. Robinson rebounded and drove the length of the court for a layup.
Robinson went 16-of-16 from the free-throw line, setting career highs in both makes and attempts. She went 10-of-22 from the field and added nine rebounds and six assists.
Riley went 11-of-34 from the field with six rebounds and five assists.
Despite 30 percent shooting as a team, Oklahoma State led 33-31 at halftime, largely because Oklahoma also shot poorly, at 32.4 percent.
The Cowgirls led by as many as seven points in the early minutes before Oklahoma took its first lead at 22-21 on a jumper by Robinson. The lead swapped hands five more times before halftime, with Riley putting Oklahoma State up 33-31 on a driving layup.
Riley had 10 first-half points, while Robinson scored 12 of 4-of-11 shooting.
Abi Olajuwon, Oklahoma's starting center, didn't attempt a shot in the first half but scored eight points in the first seven minutes of the second half as the Sooners went up 45-42, their biggest lead to that point. Oklahoma led 57-52 with 7:09 left.
Riley's double-figure scoring outing was her 81st in a row, the second-longest streak in NCAA Division I. She passed the 2,500-point career mark during the game, finishing with 2,523, the second-best in Big 12 history behind Courtney Paris of Oklahoma, who scored 2,729 points from 2005 to 2009.
Tegan Cunningham scored 16 points for Oklahoma State, while Olajuwon finished with 14 points and nine rebounds for the Sooners, who outrebounded the Cowgirls 49-31. Nyeshia Stevenson added 12 points for Oklahoma.