The 1975 Commercial Union Assurance Grand Prix was a professional tennis circuit administered by the International Lawn Tennis Federation (ILTF) which served as a forerunner to the current Association of Tennis Professionals (ATP) World Tour and the Women's Tennis Association (WTA) Tour. The circuit consisted of the four modern Grand Slam tournaments and open tournaments recognised by the ILTF. The Commercial Union Assurance Masters, Davis Cup Final and Nations Cup are included in this calendar but did not count towards the Grand Prix.
The 1974 Commercial Union Assurance Grand Prix was a professional tennis circuit administered by the International Lawn Tennis Federation (ILTF) which served as a forerunner to the current Association of Tennis Professionals (ATP) World Tour and the Women's Tennis Association (WTA) Tour. The circuit consisted of the four modern Grand Slam tournaments and open tournaments recognised by the ILTF. The season-ending Commercial Union Assurance Masters and Davis Cup Final are included in this calendar but did not count towards the Grand Prix ranking.
The 1973 Commercial Union Assurance Grand Prix was a tennis circuit administered by the International Lawn Tennis Federation (ILTF) which served as a forerunner to the current Association of Tennis Professionals (ATP) World Tour and the Women's Tennis Association (WTA) Tour. The circuit consisted of the four modern Grand Slam tournaments and open tournaments recognised by the ILTF. This article covers all tournaments that were part of that year's Men's Grand Prix. Bonus points were awarded to players who were nominated to play in certain 1973 Davis Cup ties and who miss tournaments through competing in those ties. The Commercial Union Assurance Masters is included in this calendar but did not count towards the Grand Prix.
The 1972 Commercial Union Assurance Grand Prix was a professional tennis circuit held that year and organized by the International Lawn Tennis Federation (ILTF). It consisted of 33 Grand Prix tournaments in different categories including three of the four Grand Slam tournaments and was followed by a season-ending Masters tournament. The circuit ran from February through November.
The 1971 Pepsi Cola Grand Prix was a professional tennis circuit held that year. It incorporated three of the four grand slam tournaments, the Grand Prix tournaments. It was the second edition of the Grand Prix circuit and was run by the International Lawn Tennis Federation (ITLF). In addition to regular tournament prize money a bonus prize money pool of £60,000 ($150,000) was available to be divided among the 20 highest ranking players after the last tournament. To be eligible for a share of the bonus pool a player had to compete in a minimum of nine tournaments. The circuit culminated in a Masters event in Paris, France for the seven highest point scoring players. Stan Smith was the winner of the circuit with 187 ranking points and four tournament victories.
The 1975 Pacific Southwest Open was a men's tennis tournament played on indoor carpet courts at the UCLA Pauley Pavilion in Los Angeles, California in the United States. The tournament was classified as Grade AA and was part of the Grand Prix tennis circuit. It was the 49th edition of the tournament and ran from September 15 through September 21, 1975. First-seeded Arthur Ashe won the singles title and the $16,000 first place prize money.
The 1975 South Orange Open, also known as the Tennis Week 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 Group B category tournament and was part of the 1975 Grand Prix circuit. It was the sixth edition of the tournament on the Grand Prix circuit and was held from August 18 through August 24, 1975. Second-seeded Ilie Năstase won the singles title. The final was delayed for two days due to rain.
The 1975 Indian Open was a men's tennis tournament played on outdoor clay courts in Calcutta in India. It was the third edition of the tournament and was held from 17 November through 23 November 1975. The tournament was part of the Grand Prix tennis circuit and categorized in Group A. Second-seeded Vijay Amritraj won the singles title, his second at the event after 1973.
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 1974 Indian Open was a men's tennis tournament played on outdoor clay courts in Bombay, India. It was the second edition of the event and was held from 11 November through 17 November 1974. The tournament was part of the Grand Prix tennis circuit and categorized in Group B. Third-seeded Onny Parun won the singles title.
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 1973 Indian Open was a men's tennis tournament played on outdoor clay courts in New Delhi, India. It was the inaugural edition of the event and was held from 15 October through 20 October 1973. The tournament was part of the Group B tier of the Grand Prix tennis circuit. Vijay Amritraj won the singles title.
The 1977 Indian Open was a men's tennis tournament played on outdoor clay courts in Bombay, India. It was the fifth edition of the tournament and was held from 28 November through 4 December 1977. The tournament was part of the 1 Star tier of the Grand Prix tennis circuit. Second-seeded Vijay Amritraj won the singles title, his third at the event after 1973 and 1975.
The 1979 Indian Open, also known as the Indian Grand Prix, was a men's tennis tournament played on outdoor clay courts in Bombay, India. It was the seventh and last edition of the tournament and was held from 19 November through 25 November 1979. The tournament was part of the Grand Prix tennis circuit. First-seeded Vijay Amritraj won the singles title, his fourth at the event after 1973, 1975 and 1977. Due to the cancellation of the tournament in Manila, Philippines the Indian Open was held one week earlier compared to the original schedule.
The 1974 City National Buckeye Championships was a men's tennis tournament played on outdoor hard courts at the Buckeye Boys Ranch in Grove City, Columbus, Ohio in the United States that was part of Group B of the 1974 Grand Prix circuit. It was the fifth edition of the tournament and was held from August 13 through August 19, 1974. Fourth-seeded Raúl Ramírez won his second consecutive singles title at the event and earned $9,000 first-prize money.
The 1976 Citizen's Classic, also known as the Hong Kong Open, was a men's tennis tournament played on outdoor hard courts in Hong Kong. It was the fourth edition of the event and was held from 8 November through 14 November 1976. The tournament was part of the Two Star tier of the 1976 Grand Prix tennis circuit. Fourth-seeded Ken Rosewall won the singles title.
The 1978 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. The event was part of the 1978 Grand Prix circuit. It was the ninth edition of the tournament and was held from July 31 through August 6, 1978. First-seeded Guillermo Vilas won his second consecutive singles title at the event and earned $15,000 first-prize money.
The 1979 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. The event was part of the 1979 Grand Prix circuit. It was the tenth edition of the tournament and was held from July 30 through August 5, 1979. First-seeded John McEnroe won the singles title and earned $13,000 first-prize money.
The 1980 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. The event was part of the 1980 Grand Prix circuit. It was the 11th edition of the tournament and was held from July 28 through August 4, 1980. Second-seeded José Luis Clerc won the singles title and earned $15,000 first-prize money.
The 1975 City National Buckeye Championships was a men's tennis tournament played on outdoor hard courts at the Buckeye Boys Ranch in Grove City, Columbus, Ohio in the United States that was part of Group B category of the 1975 Grand Prix circuit. It was the sixth edition of the tournament and was held from August 12 through August 18, 1975. Fourth-seeded Vijay Amritraj won the singles title and earned $9,000 first-prize money.
Alex Metreveli [1] 
Brian Gottfried / 
Raúl Ramírez [2] 