Shay Davis led the Leathernecks with 22 points and also added three steals. James Dent Jr. scored 15 points and added five rebounds. JJ Kalakon shot 6 of 7 from the field to finish with 12 points.
Chris Cross finished with 13 points for the Trojans. Harrison Askey added seven points for Hannibal-LaGrange. Khalib Becton also put up five points.
Western Illinois hosts South Dakota in its next matchup on Saturday.