Kamau Stokes had 16 points and Xavier Sneed scored 14 for the Wildcats (24-5, 12-4), who held off the Bears to maintain a share of the Big 12 lead with No. 11 Texas Tech. Both teams have two games left.
The Wildcats used a 20-2 run in the first half to take a 24-9 lead, but the Bears pulled within 32-30 at halftime.
Wade slammed home a monstrous dunk to give Kansas State a 43-40 lead and spark a 12-1 run. The Wildcats were in control until Mason hit a jumper and Freddie Gillespie dunked to make it 63-60 with 22 seconds left. Stokes followed with two free throws, and Gillespie turned the ball over to kill Baylor’s rally.
Wade played perhaps his best game of the season, going 9 of 15 from the floor. He hasn’t practiced for the past three weeks while dealing with a foot injury.
The Wildcats scored 21 points off 19 Baylor turnovers.
Baylor: The Bears played well after a lousy stretch in the first half. They will be a tough out in the Big 12 Tournament.
Kansas State: The Wildcats are two wins away from a Big 12 title and could clinch it next Saturday when they host Oklahoma on the final day of the regular season.
The Bears host the Oklahoma State Cowboys on Wednesday night.
Kansas State goes to TCU for a matchup on Monday.