COLUMBIA, Mo. (AP) _ Stacey Dales proved how versatile she really is.
Dales, a 6-foot senior, scored a career-high 30 points and had five assists as No. 3 Oklahoma defeated Missouri 90-70 on Saturday.
``She's so tough to guard because she can do so many things,'' Missouri coach Cindy Stein said. ``If you put a guard on her she'll shoot over, or if you put a forward on her she'll go around. She's the cream of the crop.''
Dales, an All-American, made 13 of 18 shots to lead Oklahoma (23-3, 13-2), which clinched the regular season Big 12 title outright for the second consecutive year. The Sooners shared the title with Iowa State and Texas Tech in 2000.
Missouri (14-12, 5-10) took a 47-45 lead with 15:26 remaining on a 3-pointer by Terianne Wolford, but Oklahoma used an 21-7 run in the next six minutes to take control.
Oklahoma coach Sherri Coale felt it was just a matter of time before her team made the run.
``I felt like we were on the verge on a number of occasions of really taking off,'' Coale said. ``Then something would happen. We would miss a shot or a foul would be called and we would break where we were headed.''
Stein credited Oklahoma's defense in the second half for the Sooners success in forcing 14 Missouri turnovers in the final 20 minutes.
``They pressured the ball in the second half, and we freaked,'' she said.
Missouri outrebounded Oklahoma 39-28, but committed 25 turnovers to Oklahoma's 12. The Sooners also led 16-5 in steals.
Oklahoma took a 14-9 lead, but committed 13 fouls in the first half. Missouri used foul shots and inside play to stay close and take a 20-19 lead with 9:30 left in the first half.
Neither team had more than a four-point lead for the rest of the half and the game was tied at 37 at halftime.
``They're not ranked third in the country for nothing,'' said Kerensa Barr, Missouri's leading scorer who made just 4 of 13 shots and scored nine points.
Rosalind Ross scored 18 points for Oklahoma, all on 3-pointers. Her six 3-pointers tied a career high.
``I haven't been shooting as well as I'm capable, so some teams have been backing off on me,'' Ross said. ``I was hoping for this, I was feeling good today.''
Caton Hill added 15 points for Oklahoma, and LaNeishea Caufield scored 12.
Wannette Smith scored a career-high 17 points on 7-of-13 shooting to lead Missouri. Wolford also set a career high with 15 points.