World Social Tennis League Organization

WSTLO is an international federation that sets standards for social tennis leagues, often called beer or wine leagues. It defines the format required to become an official member league: a player draft, named team captains, a playoff bracket, and a season-ending championship, along with standards like a commissioner, a real season of at least four teams and six weeks, and written rules with a code of conduct. Leagues that meet these requirements can apply for membership, undergo chapter review, pay annual dues, and get listed on wstlo.org, along with use of the WSTLO seal. The organization is headquartered in Baton Rouge, Louisiana, and connects member leagues to chapters worldwide.