Xavier (11-5, 2-2) was within 56-55 on 3-pointer by Remy Abell with 10:14 to play but Alex Barlow responded with a triple after grabbing an offensive rebound. Kelan Martin followed with a 3 and Xavier couldn't respond. A jumper by Jones made it 73-63 with 4:52 to go.
Matt Stainbrook led Xavier with 21 points and Abell had 15. It is the first time the Musketeers lost by more than four points.
Butler had a 42-29 rebounding advantage with 17 coming on the offensive end.