The 1975 South American Open also valid as the ATP Buenos Aires was a men's Grand Prix tennis circuit tournament played on outdoor clay courts in Buenos Aires, Argentina. The event was part of the 1975 Grand Prix circuit and was held from 10 November through 16 November 1975. First-seeded Guillermo Vilas won the singles title.
The 1974 Bavarian Tennis Championships was a men's Grand Prix tennis circuit tournament held at the MTTC Iphitos in Munich, West Germany which was played on outdoor clay courts. It was the 58th edition of the tournament and was held from 13 May through 19 May 1974. Seventh-seeded Jürgen Fassbender won the singles title.
The 1976 Romika Cup, also known by as the Bavarian Tennis Championships, was a men's tennis tournament that was part of the Two Star category of the 1976 Grand Prix tennis circuit. The tournament was held at the MTTC Iphitos in Munich, West Germany and ran from 4 May through 9 May 1976. Manuel Orantes won the singles title.
The 1974 Rothmans Canadian Open was a tennis tournament played on outdoor clay courts at the Toronto Cricket Skating and Curling Club in Toronto in Canada that was part of the 1974 Commercial Union Assurance Grand Prix and of the 1974 WTA Tour. The tournament was held from August 12 through August 18, 1974.
The 1976 Suisse Open Gstaad was a men's tennis tournament played on outdoor clay courts in Gstaad, Switzerland. It was the 31st edition of the tournament and was held from 4 July through 11 July 1976. The tournament was part of the Grand Prix tennis circuit. Raúl Ramírez won the singles title.
The 1976 Austrian Open , also known as the 1976 Head Cup for sponsorship reasons, was a tennis tournament played on outdoor clay courts. It was categorized as a two-star tournament and was part of the 1976 Commercial Union Assurance Grand Prix circuit. It took place at the Tennis Stadium Kitzbühel in Kitzbühel Austria and was held from 12 July until 19 July 1976. Manuel Orantes won the singles le.
The 1972 Grand Prix German Open was a combined men's and women's tennis tournament played on outdoor red clay courts. It was the 64th edition of the event and was part of the 1972 Commercial Union Assurance Grand Prix circuit. It took place at the Am Rothenbaum in Hamburg, West Germany, from 5 June through 11 June 1972. Manuel Orantes and Helga Masthoff won the singles titles.
The 1974 U.S. Clay Court Championships was a combined men's and women's tennis tournament held in Indianapolis, Indiana in the United States and played on outdoor clay courts. It was part of the men's Grand Prix and women's International Grand Prix. It was the 6th edition of the tournament and was held from August 5 through August 12, 1974. First-seeded Jimmy Connors won the men's singles title and accompanying $16,000 prize money while Chris Evert took the women's title.
The 1974 Grand Prix German Open was a combined men's and women's tennis tournament played on outdoor red clay courts. It was the 66th edition of the event and was part of the 1974 Commercial Union Assurance Grand Prix circuit. It took place at the Am Rothenbaum in Hamburg, West Germany, from 20 May through 26 May 1974. Eddie Dibbs and Helga Masthoff won the singles titles.
The 1975 U.S. Clay Court Championships was a combined men's and women's Grand Prix tennis tournament held in Indianapolis in the United States and played on outdoor clay courts. It was the seventh edition of the tournament and was held from August 4 through August 11, 1975. Third-seeded Manuel Orantes won the men's singles title and the accompanying $16,000 first prize money while Chris Evert won the women's singles title.
The 1974 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 1974 Grand Prix circuit. It was the 47th edition of the tournament and was held from August 20 through August 26, 1974. Fourth-seeded Björn Borg won the singles title and the accompanying $16,000 first prize money. En route to the final Borg survived match points in both his quarterfinal match against Marty Riessen and his semifinal match against Jan Kodeš. With his victory Borg became the youngest winner of the US Pro Championships at 18 years and two months, surpassing title-holder Jimmy Connors who did not defend his title but instead elected to play the Eastern Grass Court Championships in preparation for the US Open. After the final, which was watched by a crowd of almost 6,000, Okker commented "This was the first time I've played Björn Borg and at the moment I'm hoping it will be the last!".
The 1975 Suisse Open Gstaad was a men's tennis tournament played on outdoor clay courts in Gstaad, Switzerland. It was the 30th edition of the tournament and was held from 7 July through 13 July 1975. The tournament was part of the Grand Prix tennis circuit and categorized in Group B. Ken Rosewall won the singles title and the accompanying $8,000 prize money.
The 1974 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 fifth edition of the tournament and was held from 29 July through 5 August 1974. The tournament was part of the Grand Prix tennis circuit and categorized in Group AA. The singles final was won by tenth-seeded Guillermo Vilas who received the $16,000 first prize money and 80 Grand Prix points.
The 1974 U.S. Clay Court Championships – Men's singles was an event of the 1974 U.S. Clay Court Championships tennis tournament and was played on outdoor clay courts in Indianapolis, Indiana in the United States from August 5 through August 12, 1974. The draw comprised 64 players and 12 of them were seeded. Fourth-seeded Manuel Orantes was the defending champion U.S. Clay Court Championships singles champion but lost in the semifinals to Jimmy Connors. First-seeded Jimmy Connors won the title and $16,000 first-prize money by defeating third-seeded Björn Borg in the final, 5–7, 6–3, 6–4. It was their first encounter on clay courts.
The 1975 Rothmans International Trophy was a men's professional tennis tournament held on indoor carpet courts at the Royal Albert Hall in London, England. It was the fifth edition of the event and was held from 4 March until 8 March 1975. The tournament was a special non–ranking event on the 1975 World Championship Tennis circuit consisting of eight nations and 16 players. Mark Cox won the singles title.
The 1973 German Open was a combined men's and women's tennis tournament played on outdoor clay courts. It was the 66th edition of the event and was part of the 1973 Commercial Union Assurance Grand Prix circuit. It took place at the Am Rothenbaum in Hamburg, West Germany, from 11 June until 17 June 1973. Eddie Dibbs and Helga Masthoff won the singles titles.
The 1976 Berlin Open, also known as the Berlin Grand Prix, was a men's tennis tournament staged in Berlin, West Germany that was part of the Grand Prix circuit and categorized as a One star event. The tournament was played on outdoor clay courts and was held from 14 June until 20 June 1976. It was the second edition of the tournament and unseeded Víctor Pecci won the singles title.
The 1978 Berlin Open, also known as the International Championships of Berlin, was a men's tennis tournament staged in Berlin, West Germany that was part of the Grand Prix circuit. The tournament was played on outdoor clay courts and was held from 19 June until 25 June 1978. It was the fourth edition of the tournament and fifth-seeded Vladimír Zedník won the singles title.
The 1973 Milo International Tennis Classic, also known as the Manila Open, was a men's tennis tournament played on outdoor clay courts in Manila, the Philippines. It was the inaugural edition of the event and was held from 15 October through 21 October 1973. The tournament was part of the Grade C tier of the Grand Prix tennis circuit and was the third leg of the Asian circuit. Ross Case won the singles title.
The 1974 Philippine Championships was a men's tennis tournament played on outdoor clay courts in Manila, the Philippines. It was the second edition of the event and was held from 11 November through 17 November 1974. The tournament was part of the Group B tier of the Grand Prix tennis circuit. Ismail El Shafei won the singles title.
Hans-Jürgen Pohmann [1] 
Allan Stone [2] 