1979 New South Wales Open

The 1979 Custom Credit Australian Indoor Championships was a men's tennis tournament played on indoor hard courts at the Hordern Pavilion in Sydney, Australia and was part of the 1979 Colgate-Palmolive Grand Prix. It was the seventh edition of the tournament and was held from 15 October through 21 October 1979. First-seeded Vitas Gerulaitis won the singles title.

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 1979 Stockholm Open was a tennis tournament played on hard courts. The men's event was part of the 1979 Colgate-Palmolive Grand Prix, while the women's took part of the 1979 WTA Tour and took place at the Kungliga tennishallen in Stockholm, Sweden. The women's tournament was held from 2 November through 5 November 1979 while the men's tournament was held from 5 November through 11 November 1979.

The 1980 Stockholm Open was a tennis tournament played on indoor hard courts. The men's event was part of the 1980 Volvo Grand Prix, while the women's was part of the 1980 WTA Tour and took place at the Kungliga tennishallen in Stockholm, Sweden. The women's tournament took part from 27 October through 1 November 1980 while the men's tournament was held from 4 November through 10 November 1980. Björn Borg and Hana Mandlíková won the singles titles.

The 1979 Benson & Hedges Championships, also known as the Wembley Championships, was a men's tennis tournament played on indoor carpet courts at the Wembley Arena in London, England that was part of the 1979 Colgate-Palmolive Grand Prix. It was the fourth edition of the tournament and was held from 13 November until 17 November 1979. First-seeded John McEnroe won his second consecutive title at the event.

The 1978 U.S. National Indoor Championships was a men's tennis tournament played on indoor hard courts at the Racquet Club of Memphis in Memphis, Tennessee in the United States that was part of the 1978 Colgate-Palmolive Grand Prix. It was the ninth edition of the tournament was held from February 27 through March 5, 1978. First-seeded Jimmy Connors won the singles title and $39,000 first-prize money. It was Connors' fourth title at the event after his three successive titles from 1973 to 1975, when the tournament was held in Salisbury, Maryland.

The 1979 U.S. Clay Court Championships was a men's Grand Prix and women's Colgate Series tennis tournament. The event was held for the first time at the newly built Indianapolis Sports Center in Indianapolis in the United States and played on outdoor clay courts. It was the 11th edition of the tournament in the Open Era and was held in from August 6 through August 12, 1979. First-seeded Jimmy Connors won the men's singles title and the $25,000 first-prize money. First-seeded Chris Evert-Lloyd claimed the women's singles title and $20,000 first-prize money.

The 1978 U.S. Clay Court Championships was a combined men's and women's tennis tournament that was held at the Indianapolis Racquet Club in Indianapolis in the United States and played on outdoor clay courts. It was the 10th edition of the tournament in the Open Era and was held from August 7 through August 13, 1978. First-seeded Jimmy Connors won the men's singles title and the accompanying $24,000 first-prize money, while college amateur Dana Gilbert took the women's championship.

The 1977 Grand Prix German Open was a combined men's and women's tennis tournament played on outdoor red clay courts. It was the 69th edition of the event and was part of the 1977 Colgate-Palmolive Grand Prix circuit and categorized as a four-star event. It took place at the Am Rothenbaum in Hamburg, West Germany, from 9 May through 15 May 1977. Paolo Bertolucci, after a victory in the final over title-holder Manuel Orantes, and Laura duPont won the singles titles.

The 1980 Italian Open was a combined men's and women's tennis tournament that was played on outdoor clay courts. For the first time in the history of the tournament the men and women competed in different locations. The men's event was held at the traditional location of Foro Italico in Rome, while the women played in Perugia. It was the 37th edition of the tournament. The men's tournament was part of the 1980 Volvo Grand Prix while the women's tournament was part of the Colgate Series. The women's event was played from 5 May through 11 May 1980 while the men's event was organized from 19 May through 25 May 1980. First-seeded Guillermo Vilas, runner-up in 1976 and 1979, won the men's singles title and the accompanying $28,000 first-prize money. The women's singles title was won by first-seeded Chris Evert-Lloyd, her third Italian Open title after 1974 and 1975.

The 1980 Austrian Open , also known as the 1980 Head Cup for sponsorship reasons, was a combined men's and women's tennis tournament played on outdoor clay courts. It was categorized as a two-star tournament and was part of the men's 1980 Volvo Grand Prix circuit and of the Colgate Series of the women's 1980 WTA Tour. It took place at the Tennis Stadium Kitzbühel in Kitzbühel, Austria and was held from 21 July through 27 July 1980. First-seeded Guillermo Vilas won the men's singles title and the accompanying $13,000 first-prize money while Virginia Ruzici won the women's singles event.

The 1977 New South Wales Open, also known by its sponsored name Marlboro New South Wales Open, was a combined men's and women's tennis tournament played on outdoor grass courts at the White City Stadium in Sydney, Australia. The men's was part of the 1977 Colgate-Palmolive Grand Prix circuit. It was the 85th edition of the event and was held from 12 December through 18 January 1977. The singles titles were won by Evonne Goolagong Cawley and Roscoe Tanner. Defending champion Tony Roche was unable to participate due to a stomach muscle injury.

The 1979 Japan Open Tennis Championships, also known by its sponsorship name Hit-Union Japan Open Tennis Championships, was a combined men's and women's tennis tournament played on outdoor clay courts in Tokyo, Japan that was part of the Colgate Series and the Volvo Grand Prix circuit. The tournament was held from 22 October through 28 October 1979. Terry Moor (ninth-seeded) and Betsy Nagelsen won the singles titles.

The 1978 New South Wales Open, also known by its sponsored name Marlboro New South Wales Open, was a combined men's and women's tennis tournament played on outdoor grass courts at the White City Stadium in Sydney, Australia. The men's event was part of the 1978 Colgate-Palmolive Grand Prix circuit while the women's event was art of the 1979 Colgate Series. It was the 86th edition of the event and was held from 18 December through 24 December 1978. The singles titles were won by unseeded Tim Wilkison and second-seeded Dianne Fromholtz.

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 1980 New South Wales Open was a combined men's and women's tennis tournament played on outdoor grass courts at the White City Stadium in Sydney, Australia. The men's event, also known by its sponsored name Nabisco NSW Open, was part of the 1980 Volvo Grand Prix circuitand was held from 15 December through 21 December 1980. The women's event, also known by its sponsored name NSW Building Society Classic, was part of the 1980 Colgate Series and was held from 1 December through 7 December 1980. It was the 88th edition of the event. The singles titles were won by unseeded Fritz Buehning and third-seeded Wendy Turnbull.

The 1980 Porsche Tennis Grand Prix was a women's singles tennis tournament played on indoor carpet courts at the Tennis Sporthalle Filderstadt in Filderstadt in West Germany. The event was part of the AAA category of the 1980 Colgate Series. It was the third edition of the tournament and was held from 3 November through 9 November 1980. First-seeded Tracy Austin won the singles event, her third successive singles title at the event, and the accompanying $22,000 first-prize money.

The 1980 Volvo Women's Cup was a women's tennis tournament played on outdoor hard courts at the Ramapo College in Mahwah, New Jersey in the United States, It was part of the Colgate Series circuit of the 1980 WTA Tour and classified as a category AA event. It was the third edition of the tournament and was held from August 18 through August 24, 1980. Fifth-seeded Hana Mandlíková won the singles title and earned $20,000 first-prize money.

The 1980 National Panasonic South Australian Open, also known as the National Panasonic Women's Open, was a women's tennis tournament played on outdoor grass courts at the Memorial Drive in Adelaide, Australia that was part of the category AAA of the Colgate Series of the 1980 WTA Tour. It was the inaugural edition of the National Panasonic Open and was held from 8 December through 14 December 1980. First-seeded Hana Mandlíková won the singles title and earned $22,000 first-prize money.

The 1980 Davison's Classic was a women's tennis tournament played on indoor carpet courts at the Alexander Memorial Coliseum in Atlanta, Georgia in the United States. The event was part of the AA category of the 1980 Colgate Series. It was the fifth edition of the tournament and was held from September 22 through September 28, 1980. Third-seeded Hana Mandlíková won the singles title and earned $20,000 first-prize money.