Young netted 14 points on 7-of-9 shooting from the field while Releford and Withey added 12 points each for the Jayhawks (14-1, 2-0 Big 12).
The triumph was the 13th straight for Kansas, which hasn't lost since the second contest of the season when it fell to Michigan State.
Jamal Williams the Red Raiders (8-6, 1-2) with 11 points.
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