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Quinn Costello is a basketball power forward from United States. In 2026-2027, Quinn Costello played 1 game for Michigan (Non-Conf Games), averaging 13.0 points, 4.0 rebounds and 1.0 assists in 21.0 minutes per game on 41.7% field-goal shooting. Scouting4U covers 2 seasons of Quinn Costello's career (2025-2027), with 2 clubs.