The Washington Area Tennis Association (WATA) is a 501c7 entity (not-for-profit organization) that was founded to promote tennis (Age 18 and above) in Maryland and Washington, DC. Outdoor Tennis: May to June, July to August and September and October. Indoor Tennis: November to April. League play for the Corporate, Government, and Not-For-Profit organizations. Qualifying Teams for all levels may advance to one of six Regional Championships held at various locations across the country and teams that win the Regional Championships have an opportunity to advance to the National Championships. WATA offers a variety of tennis formats to the age 18 and older tennis community and offers Impact Team Tennis leagues year-round.