Question: Kastles Stadium at The Wharf had a ribbon-cutting ceremony attended by the current commissioner of what organization?

Related documents: [0]  [DOC] The Kastles Stadium at The Wharf was a tennis stadium on the Southwest Waterfront in Washington, D.C. Built in 2011, the stadium was the home venue for the Washington Kastles tennis team. The stadium was opened on June 14, 2011, with a ribbon-cutting ceremony attended by Billie Jean King, Ilana Kloss, District of Columbia mayor Vincent Gray, and others. The Kastles opened their 2011 season on July 5 at the stadium playing against the Kansas City Explorers. [END] 
[1]  [DOC] Ilana Sheryl Kloss (born 22 March 1956) is a former professional tennis player, tennis coach, and the current commissioner of World TeamTennis, a position that she has held since 2001. [END]  
Answer: World TeamTennis
World TeamTennis