The 1991 Australian Men's Hardcourt Championships was a men's tennis tournament played on indoor hard courts in Adelaide, Australia and was part of the ATP World Series of the 1991 ATP Tour. It was the 14th edition of the tournament and was held from 31 December 1990 to 7 January 1991. Unseeded Nicklas Kulti won the singles title.
The 1979 ATP Buenos Aires was a men's Grand Prix tennis circuit tournament held in Buenos Aires, Argentina that was played on outdoor clay courts. It was the 13th edition of the tournament and was held from 19 November through 25 November 1979. Guillermo Vilas won the singles title.
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 Volvo International was a men's professional tennis tournament played on outdoor clay courts in North Conway, New Hampshire in the United States and was part of the 1979 Colgate-Palmolive Grand Prix. It was the 7th edition of the tournament and was held from July 30 through August 5, 1979. Fourth-seeded Harold Solomon won the singles title.
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 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. 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. The event was part of the 1978 Grand Prix circuit. It was the 51st edition of the tournament and was held from August 21 through August 28, 1978. Despite pressure to switch to a hard court surface from the Association of Tennis Professionals (ATP) and some leading players, in line with the surface change made that year by the US Open which directly followed the Boston event, the tournament organization elected to remain a clay court tournament in 1978. Several top players including Björn Borg, Guillermo Vilas and Jimmy Connors elected not to play the tournament. Fourth-seeded and defending champion Manuel Orantes won the singles title and the accompanying $32,000 first-prize money. The final was delayed until Tuesday, August 29 due to rain.
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 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 1978 Suisse Open Gstaad was a men's tennis tournament played on outdoor clay courts in Gstaad, Switzerland. It was the 33rd edition of the tournament and was held from 10 July through 16 July 1978. The tournament was part of the Grand Prix tennis circuit with a total prize money available of $75,000. First-seeded Guillermo Vilas won the singles title, his second at the tournament after 1974.
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 Australian Hard Court Tennis Championships was a men's tennis tournament that was part of the 1980 Grand Prix tennis circuit. It was the 36th edition of the event and was held in Hobart, Australia from 31 December 1979 until 6 January 1980 and played on outdoor hardcourts. Unseeded Shlomo Glickstein won the singles title.
The 1983 United Virginia Bank Classic, also known as the Richmond WCT, was a men's tennis tournament played on indoor carpet courts at the Robins Center in Richmond, Virginia, United States. The event was part of 1983 World Championship Tennis circuit. It was the 18th edition of the tournament and was held from February 7 through February 13, 1983. Second-seeded Guillermo Vilas won the singles title and the $100,000 first-prize money.
The 1982 U.S. Pro Tennis Championships was a men's tennis tournament played on outdoor green clay courts at the Longwood Cricket Club in Chestnut Hill, Massachusetts in the United States. The event was part of the Super Series of the 1982 Volvo Grand Prix circuit. It was the 55th edition of the tournament and was held from July 12 through July 18, 1982. First-seeded Guillermo Vilas won the singles title.
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 1979 Swiss Championships was a men's tennis tournament played on outdoor clay courts in Gstaad, Switzerland. It was the 34th edition of the tournament and was held from 9 July until 15 July 1979. The tournament was part of the 1979 Grand Prix tennis circuit and offered total prize money of $75,000. Third-seeded Ulrich Pinner won the singles title.
The 1980 Campionati Internazionali di Sicilia, also known as the Palermo Grand Prix or the Sicilian Open, was a men's tennis tournament played on outdoor clay courts in Palermo, Italy that was part of the 1980 Volvo Grand Prix. It was the second edition of the tournament and took place from 8 September until 14 September 1980. First-seeded Guillermo Vilas 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 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.
Guillermo Vilas [2] 
Phil Dent/ 