United States Wallball AssociationAlso printed as USWAStaten Island, NY, US · Founded 2010Games: One-wall (small and big ball)Rulebook editionsWall Ball RulesUSWA OFFICIAL RULESUSWA playing rulesSourcesUnited States Wall Ball Association, "Our story" (seen 27 October 2026)ProPublica Nonprofit Explorer, organization record, EIN 453569022 (seen 28 October 2026)New York open data, active corporations search for "wallball" (seen 28 October 2026)All organizations