Patrick Galbraith and Anders Järryd were the defending champions, but Galbraith chose not to participate, and only Jarryd competed that year.
Jarryd partnered with John Fitzgerald, but lost in the first round to Marc-Kevin Goellner and David Prinosil.
Tarik Benhabiles was the defending champion but lost in the second round to Thomas Muster.
This was the first edition of the event.
Jaroslav Bulant and Richard Vogel were the defending champions, having won the last edition held as a Challenger tournament. They did not participate in 1990.
Todd Woodbridge and Simon Youl won the title, defeating Paul Haarhuis and Mark Koevermans 6–3, 6–1, in the final.
Paul Haarhuis and Mark Koevermans were the defending champions, but did not participate together this year. Haarhuis did not participate this year. Koevermans partnered David Rikl, losing in the first round.
Sergio Casal and Emilio Sánchez were the defending champions, but lost in the semifinals this year.
Pieter Aldrich and Danie Visser were the defending champions, but lost in the first round to Paul Haarhuis and Mark Koevermans.
Scott Davis and David Pate won the title, defeating Patrick McEnroe and David Wheaton 6–1, 4–6, 6–4, 5–7, 9–7, in the final. This was Pate's first Grand Slam title and final, despite gaining the World No. 1 ranking two weeks earlier.
John Fitzgerald and Anders Järryd lost in the third round to McEnroe and Wheaton. It was their only Grand Slam loss of the year, as they would go on to win the following three majors in 1991.
Pete Sampras was the defending champion.
Sergio Casal and Emilio Sánchez were the defending champions, but did not participate this year.
Luke Jensen and Laurie Warder were the defending champions, but lost in semifinals to Petr Korda and Karel Nováček.
Boris Becker and Michael Stich were the defending champions, but Becker did not compete this year. Stich teamed up with Udo Riglewski and lost in quarterfinals to Sergio Casal and Emilio Sánchez.
Richard Krajicek and Jan Siemerink were the defending champions, but none competed this year.
Andrés Gómez and Javier Sánchez were the defending champions, but Sánchez did not compete this year. Gómez teamed up with Sergi Bruguera and lost in the semifinals to Boris Becker and Eric Jelen.
Paul Haarhuis and Mark Koevermans were the defending champions, but competed this year with different partners. Haarhuis teamed up with Jacco Eltingh and lost in the semifinals to Henrik Holm and Anders Järryd, while Koevermans teamed up with Jan Apell and lost in the first round to Javier Sánchez and Daniel Vacek.
Sergio Casal and Emilio Sánchez successfully defended their title by defeating Carl-Uwe Steeb and Michael Stich in the final, 5–7, 6–4, 6–3.
Tomáš Šmíd and Petr Korda were the defending champions, but Korda chose not to participate. Šmid partnered Karel Nováček, but lost in the first round to Ronnie Bathman and Rikard Bergh.
Sergio Casal and Emilio Sánchez were the defending champions, but lost to Omar Camporese and Goran Ivanisevic in the quarterfinals. Camporese and Ivanisevic went on to win the title, defeating Luke Jensen and Laurie Warder in the finals, 6–2, 6–3.
Sergio Casal and Emilio Sánchez were the two-time defending champions, but lost to Paul Haarhuis and Mark Koevermans in the semifinals.
Paul Haarhuis and Mark Koevermans were the defending champions, but Koevermans did not compete this year.
Pieter Aldrich and Danie Visser were the defending champions, but Aldrich did not compete this year. Visser teamed up with Gary Muller and lost in the quarterfinals to Nick Brown and Richard Vogel.
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Wayne Ferreira 
Paul Haarhuis 
