8 courts per the City of Detroit's own open-data GIS parks dataset (plus 1 pickleball-convertible court, not counted here); an independent secondary source (Hour Detroit) reports 11 — used the official city figure, flagged the discrepancy for Verifier.
Rouge Park Tennis Courts has 8 courts.
Rouge Park Tennis Courts offers outdoor tennis.
Rouge Park Tennis Courts is free to play.
Yes — Rouge Park Tennis Courts is open to the public.
Rouge Park Tennis Courts is located at 21800 Joy Rd, Detroit, MI.
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