The Leathernecks (10-3, 4-0 Summit) won their seventh straight game and bettered the 9-3 start from the 1986-87 team.
Ceola Clark added 14 points and six assists for Western Illinois, which shot 49 percent from the floor and hit 6 of 11 3-pointers. Houpt accounted for most of that, hitting 4 of 5 from long range.
Luis Jacobo scored 19 points and Joe Edwards had 10 for IPFW (6-9, 0-2), which shot just 32 percent from the floor. Frank Gaines, who ranks fourth on the Mastodons' all-time scoring list, struggled through a 2 for 13 shooting performance and finished with eight points.