into three groups, Red, Blue, and Green and the top 8 points winners qualified for the final (marked with*): 2 players by group plus the other two players having most points. Each group played separate tournaments except the Philadelphia tournament at the start of the season. Red group I. Năstase* T. Okker* T. Gorman C. Drysdale N. Pilić A. Pattison J. Alexander M. Riessen T. Roche F. McMillan Blue group J. Newcombe* S. Smith* A. Metreveli D. Stockton J. Hřebec J. Borowiak R. Case R. Ramírez J. Fillol C. Richey Green group A. Ashe* R. Laver* B. Borg* J. Kodeš* M. Cox R. Tanner E. Dibbs R. Taylor A. Panatta O. Parun 1975 The group was divided into three groups again, Red, Blue, and Green and the top 8 points winners qualified for the final (marked with *). Each group played separate tournaments except the Philadelphia tournament at the start of the season. Red group J. Alexander* H. Solomon* M. Cox* S. Smith D. Stockton B. Lutz P. Dent C. Drysdale = V. Amritraj= M. Riessen Blue group R. Laver* R. Tanner* R. Ramírez* B. Gottfried V. Gerulaitis J. Fillol A. Stone A. Pattison = J. Borowiak= I. El Shafei Green group A. Ashe* B. Borg* T. Okker B. Mottram B. Hewitt O. Parun K. Warwick J. Higueras P. Dominguez B. Giltinan 1976–1983: All the players were put back together and played the same tournaments. 1976 A. Ashe R. Ramírez G. Vilas E. Dibbs B. Borg D. Stockton B. Lutz H. Solomon V. Gerulaitis B. Gottfried 1977 1978 1979 1980 1981 R. Tanner J. Connors W. Fibak Y. Noah J. McEnroe V. Amritraj B. Gottfried V. Gerulaitis S. Mayer G. Mayer 1982 WCT expanded from the previous year and broke away from the Grand Prix for the year. There were three finals, Spring (Dallas) the most important one, Fall (Naples, Italy) and Winter (Detroit) and therefore three different points tables for each season: Spring I. Lendl J. L. Clerc W. Fibak V. Amritraj T. Šmíd P. McNamara J. McEnroe V. Gerulaitis B. Taróczy E. Dibbs Summer/Fall Winter 1983 There were only 9 tournaments and the WCT were back with the Grand Prix circuit. I. Lendl J. McEnroe G. Vilas V. Gerulaitis J. L. Clerc P. McNamee T. Šmíd W. Fibak B. Taróczy B. Scanlon WCT Challenge Cup Some special events such as the Aetna World Cup (where the Australian pros