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Donovan Holterhaus is a basketball player. In 2018-2019, Donovan Holterhaus played 1 game for Northern Iowa (Non-Conf Games), averaging 4.0 rebounds and 1.0 assists in 7.0 minutes per game on 0.0% field-goal shooting. Scouting4U covers 1 season of Donovan Holterhaus's career (2018-2019), with 1 club.