BJ Young missed an open 3-pointer 10 seconds into the game, setting the tone for a long night for Arkansas.
Mike Rosario scored a season-high 22 points, Kenny Boynton had 16 and No. 7Florida routed Auburn 83-52 on Saturday.
Eighth-ranked Florida was beaten at its own game by Kansas State. The Wildcats kept chasing down loose balls, kept taking away passing lanes on defense and generally made life miserable for Mike Rosario and the rest of the Gators.
Florida had a signature road win in its grasp, leading by six points with a minute left.
Erik Murphy tied a career-high with 24 points just days after dealing with an illness, and No. 10 Florida beat 22nd-ranked Wisconsin 74-56 on Wednesday night.