Ceola Clark III scored 17 points and Western Illinois beat IUPUI 68-59 on Saturday.
Terell Parks had 11 points and 10 rebounds as the Leathernecks (17-5, 9-2 Summit League) handed IUPUI its ninth consecutive loss.
Western Illinois led 36-30 at halftime and maintained the lead the rest of the way, though the Leathernecks didn't lead by double figures until the final two minutes.
Donovan Gibbs led the Jaguars (6-19, 1-10) with 18 points. Mitchell Patton scored 13, Sean Esposito scored 12 and Greg Rice had 10 points and seven rebounds for IUPUI.
Western Illinois won the first meeting in Macomb, Ill., 57-53 in overtime on Jan. 5.