The IBM Association of Tennis Professionals (ATP) Tour is the elite tour for professional tennis organized by the ATP tour. The IBM ATP Tour includes the Grand Slam tournaments, the ATP Super 9, the ATP Championship Series, the ATP World Series, the ATP World Team Cup, the Davis Cup, the ATP Tour World Championships and the Grand Slam Cup.
The 1987 Argentine Open, also known as the Buenos Aires Grand Prix, was a Grand Prix tennis tour tournament held on outdoor clay courts in Buenos Aires, Argentina. It was the 19th edition of the tournament and was held from 16 November until 22 November 1987. Second-seeded Guillermo Pérez Roldán won the singles title.
The 1988 Copa Nabisco Royal Open, also known as the Buenos Aires Grand Prix, was a men's Grand Prix tennis men's tournament held in on outdoor clay courts in Buenos Aires, Argentina. It was the 20th edition of the tournament and was held from 7 November through 14 November 1988. Seventh-seeded Javier Sánchez won the singles title.
The 1987 Bavarian Tennis Championships was a men's Grand Prix Tennis Circuit tournament held in Munich, West Germany. The tournament was held from 4 May through 11 May 1987. It is now part of the ATP Tour. Guillermo Pérez Roldán won the singles title.
The 1991 BMW Open was a men's tennis tournament held in Munich, Germany and played on outdoor clay courts. The event was part of the ATP World Series category of the Association of Tennis Professionals tour. It was the 75th edition of the tournament and was held from 29 April through 6 May 1991. Unseeded Magnus Gustafsson won the singles title.
The 1992 Grand Prix Hassan II was an Association of Tennis Professionals men's tennis tournament held in Casablanca, Morocco and played on outdoor clay courts. It was part of the World Series of the 1992 ATP Tour. It was the 8th edition of the tournament and was held from 16 March until 23 March 1992. Guillermo Pérez Roldán won the singles title.
The 1993 Grand Prix Hassan II was an Association of Tennis Professionals tennis tournament held in Casablanca, Morocco. It was the 9th edition of the tournament and was held from March 15 to March 22.
Guillermo Pérez Roldán won the title, defeating Germán López 2–6, 7–5, 6–3 in the final.
The 1988 Geneva Open was a men's tennis tournament played on outdoor clay courts that was part of the 1988 Nabisco Grand Prix. It was played at Geneva in Switzerland from 19 September through 26 September 1988. Unseeded Marián Vajda won the single title.
The 1989 Geneva Open was a men's tennis tournament played on outdoor clay courts that was part of the 1989 Nabisco Grand Prix. It was played at Geneva in Switzerland from 11 September through 17 September 1989. Marc Rosset, who entered the event on a wildcard, won the singles title
The 1991 Geneva Open was a men's tennis tournament played on clay courts that was part of the World Series of the 1991 ATP Tour. It was the 12th edition of the tournament and was played at Geneva, Switzerland from 9 September through 16 September 1991. Unseeded Thomas Muster won the singles title.
The 1988 Dutch Open was a Grand Prix men's tennis tournament staged at the Melkhuisje in Hilversum, Netherlands. The tournament was played on outdoor clay courts and was held from 25 July until 31 July 1988. It was the 30th edition of the tournament. Emilio Sánchez won the singles title.
The 1987 Dutch Open was a Grand Prix men's tennis tournament staged at the Melkhuisje in Hilversum, Netherlands. The tournament was played on outdoor clay courts and was held from 27 July until 2 August 1987. It was the 29th edition of the tournament. First-seeded Miloslav Mečíř won the singles title.
The 1988 Bavarian Tennis Championships was an Association of Tennis Professionals men's tennis tournament held in Munich, West Germany. The tournament was held from 2 May through 8 May 1988. Guillermo Pérez Roldán won his second consecutive title at the event.
The 1990 Torneo Godó was the 38th edition of the Torneo Godó annual men's tennis tournament played on clay courts in Barcelona, Spain and part of the Championship Series of the 1990 ATP Tour. It was the 38th edition of the tournament and took place from 9 April until 15 April 1990, and fourth-seeded Andrés Gómez won the singles title.
The 1990 Mercedes Cup, was a men's tennis tournament played on outdoor clay courts and held at the Tennis Club Weissenhof in Stuttgart, West Germany that was part of the Championship Series of the 1990 ATP Tour. It was the 13th edition of the tournament was held from 16 July until 22 July 1990. Tenth-seeded Goran Ivanišević won the singles title.
The 1989 Campionati Internazionali di Sicilia was a men's tennis tournament played on outdoor clay courts in Palermo, Italy that was part of the 1989 Nabisco Grand Prix. It was the 11th edition of the tournament and took place from 25 September until 1 October 1989. Seventh-seeded Guillermo Pérez Roldán won the singles title.
The 1988 Cedok Open, also known as the Prague Open was a men's tennis tournament played on outdoor clay courts at the I. Czech Lawn Tennis Club in Prague, Czechoslovakia that was part of the 1988 Grand Prix circuit. It was the second edition of the tournament and was held from 8 August until 14 August 1988. Third-seeded Thomas Muster won the singles title.
The 1991 Campionati Internazionali di San Marino was a men's tennis tournament played on outdoor clay courts at the Centro Tennis Cassa di Risparmio di Fonte dell'Ovo in the City of San Marino in San Marino and was part of the World Series of the 1991 ATP Tour. It was the third edition of the tournament and was held from 29 July until 4 August 1991. First-seeded Guillermo Pérez Roldán won his second consecutive singles title at the event.
The 1990 Campionati Internazionali di San Marino was a men's tennis tournament played on outdoor clay courts at Centro Sportivo Serravalle in San Marino and was part of the World Series of the 1990 ATP Tour. It was the third edition of the tournament and the second as an ATP Tour event, and was held from 20 August until 26 August 1990. First-seeded Guillermo Pérez Roldán won the singles title.
Thomas Muster [1] 
Todd Woodbridge / 
