Jaylen Minnett added 17 points with seven assists for the Jaguars (2-2), who led 38-36 at halftime and held the Bulls to 17 second-half points.
Laquincy Rideau led the Bulls (1-2) with 15 points and seven steals and Rashun Williams added 11 points.
IUPUI travels to Loyola Chicago next Wednesday and South Florida plays Wofford at home next Thursday.
Copyright 2019 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.