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Siem Uijtendaal is a 198 cm (6'6") basketball second guard from Netherlands, born in 2001 (age 25). In 2026-2027, Siem Uijtendaal played 6 games for Groningen (BNXT), averaging 10.3 points, 3.8 rebounds and 2.8 assists in 27.0 minutes per game on 49.0% field-goal shooting. Scouting4U covers 9 seasons of Siem Uijtendaal's career (2018-2027), with 5 clubs.