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.
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.