and the US pros faced in a team event because in 1970, at the start of this event, contract pro players weren't allowed to enter the Davis Cup) or the Challenge Cup (an 8-man tournament) were held by the WCT organization. List of WCT Challenge Cup winners 1976 – Honolulu – Ilie Năstase defeated Arthur Ashe, 6–3, 1–6, 6–7, 6–3, 6–1 1976/7 – Las Vegas – Ilie Năstase defeated Jimmy Connors, 3–6, 7–6, 6–4, 7–5 1977 – Las Vegas – Jimmy Connors defeated Roscoe Tanner, 6–2, 5–6, 3–6, 6–2, 6–5 1978 – Montego Bay – Ilie Năstase defeated Peter Fleming, 2–6, 5–6, 6–2, 6–4, 6–4 1979 – Montreal – Björn Borg defeated Jimmy Connors, 6–4, 6–2, 2–6, 6–4 1980 – Montreal – John McEnroe defeated Vijay Amritraj, 6–1, 6–2, 6– See also Grand Prix tennis circuit History of tennis References External links WorldChampionshipTennis.com: The official website of World Championship Tennis, LLC, owner of the historical archives of World Championship Tennis. The $35,000 Racquet Dave Cody, Commonwealth Times 1981-02-17, pages 1,12-13,24, Description of 1981 Richmond WCT. Sports organizations established in 1967 Organizations disestablished in 1990 Defunct tennis tours Tennis organizations TVS Television Network Tennis leagues in the United States