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Mark Gilliam is a basketball player. In 2016-2017, Mark Gilliam played 1 game for Keystone (Non-Conf Games), averaging 16.0 points, 1.0 rebounds and 2.0 assists in 31.0 minutes per game on 50.0% field-goal shooting. Scouting4U covers 1 season of Mark Gilliam's career (2016-2017), with 1 club.