The Jayhawks took a 10-0 lead in the opening minutes and never trailed. They will play the winner of the Duke-North Carolina game on Monday night for the national championship.
No. 1 seed Kansas faces No. 2 seed Villanova in the first national semifinal, followed by the first game Duke and North Carolina have ever played in the N.C.A.A. men’s tournament, for a berth in the championship game.