The 1990 ATP Tour World Championships, also known as the 1990 IBM ATP Tour World Championships for sponsorship reasons, was a men's tennis tournament played on indoor carpet courts in Frankfurt, Germany. It was the 21st edition of the tournament and was held between 13–18 November 1990. Andre Agassi won the singles title.
Mats Wilander defeated Pat Cash in the final, 6–3, 6–7(3–7), 3–6, 6–1, 8–6 to win the men's singles tennis title at the 1988 Australian Open.
Defending champion Stefan Edberg defeated Pat Cash in the final, 6–3, 6–4, 3–6, 5–7, 6–3 to win the men's singles tennis title at the 1987 Australian Open.
The 1994 Legg Mason Tennis Classic was a men's tennis tournament played on outdoor hard courts at the William H.G. FitzGerald Tennis Center in Washington D.C., United States. It was the 26th edition of the tournament and was held from July 18 through July 24, 1994 and was part of the Championship Series of the 1994 ATP Tour. Second-seeded Stefan Edberg, who entered the tournament on a wildcard, won the singles title.
The 1990 Norstar Bank Hamlet Challenge Cup was a tennis tournament played on outdoor hard courts. It was the 10th edition of the event known that year as the Norstar Bank Hamlet Challenge Cup, and was part of the ATP World Series of the 1990 ATP Tour. It took place at the Hamlet Golf and Country Club in Commack, Long Island, New York, United States, from August 20 to August 26, 1990.
The 1991 Stockholm Open was a men's tennis tournament played on indoor carpet courts. It was the 23rd edition of the Stockholm Open and was part of the ATP Championship Series of the 1991 ATP Tour. It took place at the Stockholm Globe Arena in Stockholm, Sweden, from 21 October through 28 October 1991. Second-seed Boris Becker won the singles title, his second consecutive win at the event and his third overall after winning in 1990 and 1988..
The 1990 Stockholm Open was a men's tennis tournament played on indoor carpet courts. It was the 22nd edition of the Stockholm Open and was part of the ATP Super 9 of the 1990 ATP Tour. It took place at the Stockholm Globe Arena in Stockholm, Sweden, from 22 October through 29 October 1990.
The 1989 Paris Open was a Grand Prix tennis tournament played on indoor carpet courts. It was the 17th edition of the Paris Open. It took place at the Palais omnisports de Paris-Bercy in Paris, France, from 30 October through 6 November 1989. First-seeded Boris Becker won the singles title.
The 1992 Lyon Grand Prix was a men's tennis tournament played on indoor carpet courts. It was played at the Palais des Sports de Gerland in Lyon, France, and was part of the 1992 ATP Tour. It was the sixth edition of the tournament and took place from 19 October through 26 October 1992. First-seeded Pete Sampras won the singles title, his second consecutive at the event.
The 1988 Benson & Hedges Championships was a men's tennis tournament played on indoor carpet courts at the Wembley Arena in London, England that was part of the 1988 Nabisco Grand Prix. It was the 13th edition of the tournament and was held from 8 November until 13 November 1988. Fourth-seeded Jakob Hlasek won the singles title.
The 1987 Tokyo Indoor also known as "Seiko Super Tennis" was a men's tennis tournament played on indoor carpet courts at the Yoyogi National Gymnasium in Tokyo, Japan that was part of the 1987 Nabisco Grand Prix. The tournament was held from 20 October through 24 October 1987. It was a major tournament of the Grand Prix tennis circuit and matches were the best of three sets. Stefan Edberg won the singles title.
The 1985 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 1985 Nabisco Grand Prix. It was the 16th edition of the tournament and was held from 14 October through 21 October 1985. Second-seeded Stefan Edberg won the singles title.
The 1987 ABN World Tennis Tournament was a men's tennis tournament played on indoor carpet courts at Rotterdam Ahoy in the Netherlands. It was part of the 1987 Nabisco Grand Prix. It was the 15th edition of the tournament and was held from 16 March through 22 March 1987. First-seeded Stefan Edberg won the singles title.
The 1988 South African Open was a men's tennis tournament played on outdoor hard courts in Johannesburg, South Africa as part of the 1988 Nabisco Grand Prix. It was the 85th edition of the tournament and was held from 14 November through 20 November 1988. Second-seeded Jakob Hlasek won the singles title.
Joakim Nyström was the defending champion of the singles event at the ABN World Tennis Tournament but lost in the second round. First-seeded Stefan Edberg won the singles title after a 6–1, 6–2 win in the final against fourth-seeded John McEnroe.
The 1993 Swiss Indoors was a men's tennis tournament played on indoor hard court at the St. Jakobshalle in Basel, Switzerland that was part of the World Series of the 1993 ATP Tour. It was the 24th edition of the tournament and was held from 26 September until 2 October 1993. Second-seeded Michael Stich, who entered on a wildcard, won the singles title. Future world no. 1 Roger Federer appeared as a ball boy in this tournament.
The 1991 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 World Series of the 1991 ATP Tour. It was the 22nd edition of the tournament and took place from 23 September until 29 September 1991. Sixth-seeded Jakob Hlasek won the singles title.
The 1989 Swiss Indoors was a men's tennis tournament played on indoor carpet courts at the St. Jakobshalle in Basel, Switzerland that was part of the 1989 Nabisco Grand Prix circuit. It was the 20th edition of the tournament and took place from 3 October until 8 October 1989. Unseeded Jim Courier won the singles title.
The 1984 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 1984 Volvo Grand Prix. It was the 15th edition of the tournament and was held from 8 October through 14 October 1984. Third-seeded Joakim Nyström won the singles title.
The 1983 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 1983 Volvo Grand Prix. It was the 15th edition of the tournament and was held from 10 October through 16 October 1983. Third-seeded Vitas Gerulaitis won the singles title.
Stefan Edberg [1] 
Jakob Hlasek / 
Tomáš Šmíd [2] 