The first 1977 ATP Buenos Aires, also known as the River Plate Championships, was an Association of Tennis Professionals men's tennis tournament that was played on outdoor clay courts at the Buenos Aires Lawn Tennis Club in Buenos Aires, Argentina and held from 14 April through 17 April 1977. First-seeded Guillermo Vilas won the singles title.
The 1975 Bavarian Tennis Championships was an men's Grand Prix tennis circuit tournament held in Munich, West Germany. The tournament was played on outdoor clay courts and was held from 7 May though 11 May 1975. Guillermo Vilas won the singles title.
The 1976 Rothmans Canadian Open was a tennis tournament played on outdoor clay courts at the National Tennis Centre in Toronto in Canada that was part of the 1976 Commercial Union Assurance Grand Prix and of the 1976 WTA Tour. The tournament was held from August 16 through August 22, 1976.
The 1977 Monterrey WCT was a men's tennis tournament played on indoor carpet courts in Monterrey, Mexico. The event was part of the 1977 World Championship Tennis circuit. The tournament was held from February 26 to March 6, 1977. Unseeded Wojciech Fibak won the singles title.
The 1982 Volvo Grand Prix was a professional tennis circuit held that year. It incorporated the four grand slam tournaments, the Grand Prix tournaments. The circuit was administered by the Men's International Professional Tennis Council (MIPTC). On 30 April 1981 World Championship Tennis (WCT) announced its withdrawal from the Grand Prix circuit, which it had been incorporated into since 1978, and the re-establishment of its own tour calendar for the 1982 season. To counter the threat of player leaving the Grand Prix tour for the WCT the MIPTC introduced a mandatory commitment to play at least 10 Grand Prix Super Series tournaments.
The 1979 Colgate-Palmolive Grand Prix was a professional tennis circuit held that year. It consisted of four Grand Slam tournaments, the Grand Prix tournaments and the Nations Cup, a team event.
The 1982 Monte Carlo Open was a men's tennis tournament played on outdoor clay courts at the Monte Carlo Country Club in Roquebrune-Cap-Martin, France that was part of the 1982 Volvo Grand Prix circuit. It was the 76th edition of the tournament and was held from 5 April through 11 April 1982. Second-seeded Guillermo Vilas won the singles title.
The 1975 Dutch Open was a men's tennis tournament staged at 't Melkhuisje in Hilversum, Netherlands which was part of the Group B tier of the 1975 Grand Prix. The tournament was played on outdoor clay courts and was held from 20 July to 27 July 1975. It was the 19th edition of the tournament, and first-seeded Guillermo Vilas won his second consecutive singles title at the event.
The 1975 Torneo Godó or Trofeo Conde de Godó was a combined men's and women's tennis tournament that took place on outdoor clay courts in Barcelona, Spain. It was the 23rd edition of the tournament and the men's events were part of the 1975 Grand Prix circuit. It was held from 13 October until 19 October 1975. Björn Borg won the singles title.
The 1976 British Hard Court Championships, also known by its sponsored name Coca-Cola British Hard Court Championships, was a combined men's and women's tennis tournament played on outdoor clay courts in Bournemouth, England. The men's event was part of the 1976 Commercial Union Assurance Grand Prix. The tournament was held from 10 May through 16 May 1976. Wojciech Fibak and Helga Masthoff won the singles titles.
The 1980 Monte Carlo Open was a men's tennis tournament played on outdoor clay courts at the Monte Carlo Country Club in Roquebrune-Cap-Martin, France that was part of the 1980 Volvo Grand Prix circuit. It was the 74th edition of the tournament and was held from 31 March through 6 April 1980. First-seeded Björn Borg won the singles title, his third after 1977 and 1979.
The 1977 Monte Carlo Open was a men's tennis tournament played on outdoor clay courts at the Monte Carlo Country Club in Roquebrune-Cap-Martin, France. The tournament was part of the World Championship Tennis (WCT) tour. It was the 71st edition of the event and was held from 4 April through 10 April 1977. Björn Borg won the singles title and the accompanying $30,000 first-prize money.
The 1976 Barcelona WCT was a men's tennis tournament played on indoor carpet courts in Barcelona, Catalonia, Spain. The tournament was part of the 1976 World Championship Tennis circuit. It was the fourth and final edition of the event and was held from 2 February through 7 February 1976. Eddie Dibbs won the singles title.
The 1975 Louisville Open, also known as the First National Tennis Classic, was a men's tennis tournament played on outdoor clay courts at the Louisville Tennis Center in Louisville, Kentucky, USA. It was the sixth edition of the tournament and was held from 28 July through 5 August 1975. The tournament was part of the Grand Prix tennis circuit and categorized in Group AA. The singles final was delayed by one day due to rain and was won by defending champion Guillermo Vilas who received the $16,000 first prize money. The doubles final was not played due to rain and the prize money was shared.
The 1977 Mutual Benefit Life Open, also known as the South Orange Open, was a men's tennis tournament played on outdoor clay courts at the Orange Lawn Tennis Club in South Orange, New Jersey in the United States. It was classified as a Two Star category tournament and was part of the 1977 Grand Prix circuit. It was the eight edition of the tournament on the Grand Prix circuit and was held from July 31 through August 8, 1977. First-seeded Guillermo Vilas won the singles title.
The 1978 German Open was a combined men's and women's tennis tournament played on outdoor red clay courts. The men's tournament was part of the 1978 Colgate-Palmolive Grand Prix circuit, categorized as a four-star event, while the women's tournament was part of the Colgate Series and classified as an A category event. It was the 70th edition of the tournament and took place at the Am Rothenbaum in Hamburg, West Germany, from 15 May through 21 May 1978. Guillermo Vilas and Mima Jaušovec, both first-seeded, won the singles titles.
The 1978 Swiss Indoors was a men's tennis tournament played on indoor hard courts at the St. Jakobshalle in Basel, Switzerland that was part of the 1978 Colgate-Palmolive Grand Prix. It was the 10th edition of the tournament and was held from 24 October through 29 October 1978. First-seeded Guillermo Vilas won the singles title.
The 1979 United Bank Classic, also known as the Denver WCT, was a men's tennis tournament played on indoor carpet courts in Denver, Colorado in the United States that was part of the 1979 Grand Prix circuit. It was the eighth edition of the tournament and took place from February 19 through February 25, 1979. Sixth-seeded Wojciech Fibak won the singles competition.
The 1977 Mexico City WCT was a men's tennis tournament played on indoor carpet courts in Mexico City, Mexico. The event was part of the 1977 World Championship Tennis circuit. It was the second edition of the tournament and was held from 8 March until 13 February 1977. Unseeded Ilie Năstase won the singles title.
The 1976 Phoenix Cup, also known as the Atlanta WCT, was a men's tennis tournament played on indoor carpet courts at the Omni Coliseum in Atlanta, Georgia in the United States that was part of the 1976 World Championship Tennis circuit. It was the fifth and last edition of the tournament and was held from January 14 through January 19, 1976. Second-seeded Ilie Năstase won the singles title and the accompanying $17,000 first-prize money.
Guillermo Vilas [1] 
Helga Masthoff 
Wojciech Fibak [2] 
