(AP) Frank Mason scored 19 of his 28 points in the second half, and No. 2 Kansas rallied to beat Oklahoma 81-70 on Tuesday.
With No. 1 Baylor losing at West Virginia earlier in the night, the Jayhawks will be in position to claim the No. 1 ranking for the first time this season if they beat Oklahoma State on Saturday.
Josh Jackson scored 16 points and Devonte' Graham added 13 for the Jayhawks (15-1, 4-0 Big 12), who have won 15 straight.
Rashard Odomes and Kameron McGusty each scored 13 points for the Sooners (6-9, 0-4), who lost their seventh in a row.
Oklahoma trailed 21-14 before closing the half on a 22-6 run to take a 36-27 halftime lead.
The Jayhawks opened the second half on a 13-0 run. A 3-pointer by Mason put Kansas up 56-47, and the Jayhawks maintained control from there.
Kansas: The Jayhawks took sole possession of the Big 12 lead and maintained their series dominance over the Sooners, winning for the 16th time in the past 18 meetings.
Oklahoma: The Sooners were buoyed by scoring leader Jordan Woodard's return from a leg injury. Oklahoma lost all four games without the senior guard, who had started 115 straight games before getting hurt. Woodard entered the night averaging 17.6 points. He finished with seven points in 24 minutes, and the Sooners played much better once he took the floor as a substitute.
Kansas hosts Oklahoma State on Saturday. The Cowboys pushed Baylor last Saturday before dropping a 61-57 decision in Waco.
Oklahoma hosts Texas Tech on Saturday. The Red Raiders have a win over current No. 10 West Virginia to their credit.