| Doubles | |
|---|---|
| 1989 Athens Open | |
| Champions | |
| Runners-up | |
| Score | 6–3, 6–2 |
Rikard Bergh and Per Henricsson were the defending champions but did not compete that year.
Claudio Panatta and Tomáš Šmíd won in the final 6–3, 6–2 against Gustavo Giussani and Gerardo Mirad.
Claudio Panatta / 
Tomáš Šmíd (champions) Josef Čihák / 
Christian Miniussi (quarterfinals)
Martin Sinner / Michael Stich (semifinals) Massimo Cierro / Alessandro de Minicis (quarterfinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | 6 | 6 | |||||||||||||||||||||||||
| 0 | 2 | 1 | 1 | 1 | |||||||||||||||||||||||
| 6 | 7 | 6 | 0 | r | |||||||||||||||||||||||
| 2 | 6 | 1 | 6 | 6 | |||||||||||||||||||||||
| 3 | 6 | 6 | 3 | 1 | 3 | ||||||||||||||||||||||
| 4 | 2 | 3 | 7 | 6 | |||||||||||||||||||||||
| 6 | 6 | 6 | 4 | ||||||||||||||||||||||||
| 2 | 2 | 1 | 6 | 6 | |||||||||||||||||||||||
| 6 | 4 | 6 | 3 | 2 | |||||||||||||||||||||||
| 2 | 6 | 0 | 6 | 5 | 6 | ||||||||||||||||||||||
| 5 | 5 | 4 | 3 | 7 | 4 | ||||||||||||||||||||||
| 4 | 7 | 7 | 2 | 3 | |||||||||||||||||||||||
| 4 | 5 | 6 | 6 | ||||||||||||||||||||||||
| 6 | 7 | 6 | 6 | ||||||||||||||||||||||||
| 1 | 1 | 2 | 4 | 3 | |||||||||||||||||||||||
| 2 | 6 | 6 | |||||||||||||||||||||||||
In the 1990 Monte Carlo Open doubles, Tomáš Šmíd and Mark Woodforde were the defending champions, but Woodforde did not participate this year. Šmíd partnered Petr Korda.
The 1987 CA-TennisTrophy was a tennis tournament played on indoor hard courts at the Wiener Stadthalle in Vienna, Austria. Brad Gilbert was the defending champion but did not compete that year. Jonas Svensson won in the final 1–6, 1–6, 6–2, 6–3, 7–5 against Amos Mansdorf.
Mel Purcell and Tim Wilkison were the defending champions but did not compete that year.
Sergio Casal and Emilio Sánchez were the defending champions but lost in the second round to Marcelo Filippini and Horst Skoff.
Guy Forget and Henri Leconte were the defending champions but only Leconte competed that year with Eric Winogradsky.
Stefan Edberg was the reigning champion of the singles event at the ABN World Tennis Tournament and, seeded first, successfully defended his title after a 7–6, 6–2 win in the final against third-seeded Miloslav Mečíř.
Claudio Panatta and Tomáš Šmíd were the defending champions, but did not participate this year.
Björn Borg was the defending champion, but did not participate this year.
Claudio Mezzadri was the defending champion, but lost in the second round this year.
Andreas Maurer and Jörgen Windahl were the defending champions, but did not participate this year.
The men's doubles tournament at the 1980 French Open was held from 26 May to 8 June 1980 on the outdoor clay courts at the Stade Roland Garros in Paris, France. Victor Amaya and Hank Pfister won the title, defeating Brian Gottfried and Raúl Ramírez in the final.
The men's doubles tournament at the 1981 French Open was held from 25 May until 7 June 1981 on the outdoor clay courts at the Stade Roland Garros in Paris, France. Heinz Günthardt and Balázs Taróczy won the title, defeating Terry Moor and Eliot Teltscher in the final.
Paolo Canè and Simone Colombo were the defending champions, but Canè did not compete this year. Colombo teamed up with Francesco Cancellotti and lost in the quarterfinals to Josef Čihák and Cyril Suk.
Jakob Hlasek and Tomáš Šmíd were the defending champions but Hlasek did not compete this year, as he decided to focus on the singles tournament. Šmíd teamed up with Jan Gunnarsson and lost in the first round to tournament runners-up Omar Camporese and Claudio Mezzadri.
Ivan Lendl successfully defended his title, by defeating Guillermo Vilas 6–0, 6–3, 6–0 in the final.
Steve Denton and Ivan Lendl were the defending champions, but none competed this year. Lendl opted to focus on the singles tournament.
Anders Järryd and Hans Simonsson became 3-time consecutive champions after defeating Jim Gurfein and Erick Iskersky 7–5, 6–3 in the final.
Emilio Sánchez and Javier Sánchez were the defending champions, but Emilio did not compete this year.
Anders Järryd and Hans Simonsson were the three-time defending champions, but Järryd did not compete this year. Simonsson teamed up with Magnus Tideman and lost in the quarterfinals to Lorenzo Fargas and Gabriel Urpí.
Leonardo Lavalle and Claudio Panatta were the defending champions, but Lavalle opted to rest after competing at the Summer Olympics at Seoul during the previous week. Panatta teamed up with Thomas Muster and lost in the semifinals to Carlos di Laura and Marcelo Filippini.
