Guillermo Vilas defeated the defending champion Jimmy Connors in the final, 2–6, 6–3, 7–6(7–4), 6–0 to win the men's singles tennis title at the 1977 US Open. It was his first US Open title and second major title overall.
Brian Teacher defeated Kim Warwick in the final, 7–5, 7–6(7–4), 6–3 to win the men's singles tennis title at the 1980 Australian Open. The men's tournament was held from late December to early January 1981 – separately from the women's event, which was already held during late November.
The second 1977 ATP Buenos Aires was a men's tennis tournament held in Buenos Aires, Argentina that was part of the Grand Prix circuit and played on outdoor clay courts. It was the 11th edition of the tournament and was held from 21 November through 27 November 1977. First-seeded Guillermo Vilas won the singles title.
The 1977 American Airlines Tennis Games was a men's tennis tournament played on outdoor hard courts. It was the 4th edition of the Indian Wells Masters and was part of the 1977 Colgate-Palmolive Grand Prix. It was played at the Mission Hills Country Club in Rancho Mirage, California in the United States from February 21 through February 27, 1977. Brian Gottfried won the singles title.
The 1980 Fischer-Grand Prix was a men's tennis tournament played on indoor hard courts at the Wiener Stadthalle in Vienna, Austria that was part of the 1980 Volvo Grand Prix. It was the sixth edition of the tournament and was held from 20 October until 26 October 1980. First-seeded Brian Gottfried won the singles title, his second at the event after 1977.
The 1979 Australian Hard Court Championships, also known as the Tasmanian Open, was a men's tennis tournament that was played on the Grand Prix tennis circuit from 1 January until 7 January 1979. The event was held at the Doman Tennis Centre in Hobart, Australia and was played on outdoor hardcourts, this was the 35th edition. First-seeded Guillermo Vilas won the singles title and earned $8,000 first-prize money.
The 1982 South African Open was a men's tennis tournament played on outdoor hard courts in Johannesburg, South Africa that was part of the 1982 Volvo Grand Prix. It was the 79th edition of the tournament and was held from 23 November through 28 November 1982. Vitas Gerulaitis won his second consecutive singles title at the event.
The 1976 Italian Open was a combined men's and women's tennis tournament that was played by men on outdoor clay courts at the Foro Italico in Rome, Italy. The men's tournament was part of the 1976 Commercial Union Assurance Grand Prix while the women's tournament was part of the 1976 Virginia Slims World Championship Series. The tournament was held from 23 May until 30 May 1976. The singles titles were won by Third-seeded Adriano Panatta and Mima Jaušovec. In his first-round match Panatta survived 11 match points against Kim Warwick.
The 1974 Aryamehr Cup was a men's professional tennis tournament played on outdoor clay courts at the Imperial Country Club in Tehran in Iran. The event was part of the 1974 Commercial Union Assurance Grand Prix as a Group AA category event. It was the third edition of the tournament was held from 21 October through 27 October 1974. Guillermo Vilas won the singles title and the trophy was presented by Shah Mohammad Reza Pahlavi.
The 1977 Aryamehr Cup was a men's professional tennis tournament played on outdoor clay courts in Tehran in Iran. The event was part of the 1977 Colgate-Palmolive Grand Prix as a Five Star category event. It was the sixth and final edition of the tournament and was held from 3 October through 9 October 1977. Guillermo Vilas won the singles title.
The 1975 Washington Star International was a men's tennis tournament and was played on outdoor clay courts. It was categorized as an AA tournament and was part of the 1975 Grand Prix circuit. It was the seventh edition of the tournament and was held in Washington, D.C. from July 21 through July 28, 1975. Guillermo Vilas won the singles title and $16,000 prize money and a car in a final that was twice interrupted due to rain. Total attendance during the tournament was 55,000.
The 1975 U.S. Pro Tennis Championships was a men's tennis tournament played on outdoor green clay courts (Har-Tru) at the Longwood Cricket Club in Chestnut Hill, Massachusetts in the United States. It was classified as a Group AA category tournament and was part of the 1975 Grand Prix circuit. It was the 48th edition of the tournament and was held from August 19 through August 25, 1975. Second-seeded and defending champion Björn Borg won the singles title and the accompanying $16,000 first prize money. The tournament started a day late due to rain.
The 1980 Torneo Godó or Trofeo Conde de Godó was a men's tennis tournament that took place on outdoor clay courts at the Real Club de Tenis Barcelona in Barcelona, Catalonia, Spain. It was the 28th edition of the tournament and was part of the 1980 Grand Prix circuit. It was held from 6 October through 12 October 1980. Second-seeded Ivan Lendl won the singles title. Björn Borg, winner in 1975 and 1977, withdrew two days before the start of the event due to a knee injury.
The 1979 Italian Open was a combined men's and women's tennis tournament that was played on outdoor clay courts at the Foro Italico in Rome, Italy. It was the 36th edition of the tournament. The men's tournament was part of the 1979 Colgate-Palmolive Grand Prix while the women's tournament, held separately for the first time, was part of the Colgate Series. The women's event was played from 7 May through 13 May 1979 while the men's event was organized from 21 May through 27 May 1979. After a final that lasted five hours and nine minutes second-seeded Vitas Gerulaitis won the men's singles title, his second Italian Open title after 1977, and the accompanying $28,000 first-prize money. The women's singles title was won by third-seeded Tracy Austin. In the semifinal Austin defeated compatriot Chris Evert-Lloyd which ended Evert-Lloyd's record 125-match winning streak on clay that had started in August 1973.
The 1977 Washington Star International was a men's tennis tournament and was played on outdoor clay courts in Washington, D.C., USA. It was part of the 1977 Grand Prix circuit and categorized as a 4 star event. It was the 9th edition of the tournament and was held in Washington, D.C. from July 18 through July 25, 1977. First-seeded Guillermo Vilas won the singles title, his second after 1975, and earned the $20,000 first-prize money. The singles final was delayed for two hours due to rain.
The 1979 Richmond WCT, also known by its sponsored name United Virginia Bank Classic, was a men's tennis tournament played on indoor carpet courts in Richmond, Virginia in the United States. The event was part WCT Tour which was incorporated into the 1979 Colgate-Palmolive Grand Prix circuit. It was the 14th edition of the tournament and was held from January 29 through February 4, 1979. First-seeded Björn Borg won the singles title.
The 1979 Washington Star International was a men's tennis tournament and was played on outdoor clay courts. The event was part of the 1979 Grand Prix circuit. It was the 11th edition of the tournament and was held at Rock Creek Park in Washington, D.C. from July 16 through July 22, 1979. First-seeded Guillermo Vilas won the singles title, his third at the event after 1975 and 1977.
The 1980 German Open Championships was a men's tennis tournament played on outdoor clay courts at Am Rothenbaum in Hamburg, West Germany that was part of the Super Series of the 1980 Grand Prix circuit. It was the 72nd edition of the event and took place from 12 May until 18 May 1980. Second-seeded Harold Solomon won the singles title.
The 1980 Baltimore International, also known by its sponsored name First National Classic, was a men's tennis tournament played on indoor carpet courts at the Towson State College in Baltimore, Maryland in the United States that was part of the 1980 Grand Prix circuit. It was the ninth edition of the event and was held from January 14 through January 20, 1980. First-seeded Harold Solomon won his second consecutive singles title at the event.
The 1977 Wendy's Tennis Classic, also known as the Buckeye Championships, was a men's tennis tournament played on outdoor clay courts at the Muirfield Village in Dublin, a suburb of Columbus, Ohio in the United States that was part of the Four Star category of the 1977 Grand Prix circuit. It was the eight edition of the tournament and was held from August 8 through August 15, 1977. First-seeded Guillermo Vilas won the singles title and earned $20,000 first-prize money.
Brian Gottfried [1] 
Ion Țiriac / 
Guillermo Vilas [2] 
