Marcus Smart led the Cowboys with 23 points and 13 rebounds.
Oklahoma State (19-10, 7-9 Big 12) overcame a 10-point deficit in the second half.
OSU is making its 25th appearance in the NCAA Tournament
OSU will serve as the No. 3 seed in the 2013 Phillips 66 Big 12 Championship.
Kansas State won game in Manhattan to open league play.
NCAA Tournament-Second Round
Oklahoma State vs. Iowa State - USATSI
Oklahoma State defeats No. 5 Kansas, 72-65
Oklahoma State vs. TCU (USATSI)
Oklahoma State @ Baylor (USATSI)
2012-13 (Freshman season)
grabbed six rebounds in the semifinal game against Kansas State at the Big 12 Championship.
scored eight points, including six in the first half, and grabbed four boards against Baylor.
was extremely efficient at Kansas, scoring four points, grabbing five rebounds and dishing out an assist in eight minutes.
came off the bench the last five games after starting the first 15 contests of the season.
made a career-high six trips to the charity stripe vs Texas Tech.
dished out a career-best three assists vs TCU.
scored 12 points against Tennessee Tech.
scored a career-high 13 points at Virginia Tech.
recorded his first collegiate double-figure rebounding game with a career-high 10 boards vs sixth-ranked N.C. State.
started his first game as a collegian in the season opener against UC Davis.
blocked four shots against the Aggies, tying for the ninth most by a Cowboy freshman in school history.
ranked No. 10 on HoopScoop's list of top fifth-year players in 2012.
spent a post-graduate year at IMG Academy in Bradenton, Fla., and was a starting forward for IMG.
averaged 20 points, 10 rebounds and three assists for a team that finished 28-2 against prep schools and was ranked among the top-five nationally.
graduated from Lincoln High School in Brooklyn, N.Y. -- the same school that produced Stephon Marbury, Sebastian Telfair and Lance Stephenson.
was team captain his junior and senior seasons under head coach Dwayne Marton.
averaged 17 points and more than 10 rebounds per game as a senior.
helped lead the Railsplitters to the PSAL Class-AA title game as a senior and the Brooklyn regular-season crown and borough title.
was ranked as the No. 6 player in the state of New York in 2011 according to HoopScoop.
was listed as one of four "standout players" at the Super 16 Showcase in Hartford, Conn., in July of 2011.
also played football for two seasons in high school.
was recruited by UConn, Miami, Missouri, Louisville, Virginia, Virginia Tech, St. Johns, Rutgers, Florida and Florida State out of high school.
Born Dec. 14, 1993, Kamari is the son of Michael Murphy and Kemel and Kaheem Draper. He is the second oldest of six boys: Jacori, Kusamae, Maalik, Mikwan and Kieron. Kamari enjoys swimming, playing volleyball and football, and playing video games in his spare time. He is undecided on his major at Oklahoma State.