| Singles | |
|---|---|
| 1990 Czechoslovak Open | |
| Champion |  Jordi Arrese |
| Runner-up |  Nicklas Kulti |
| Score | 7–6, 7–6 |
| Draw | 32 (3WC/4Q) |
| Seeds | 8 |
Marcelo Filippini was the defending champion, but lost in the second round to Nicklas Kulti.
Jordi Arrese won the title by defeating Kulti 7–6, 7–6 in the final. [1]
| Semifinals | Final | ||||||||||||
 Horacio de la Peña | 3 | 0r | |||||||||||
| Nicklas Kulti | 6 | 1 | |||||||||||
| Nicklas Kulti | 6 | 6 | |||||||||||
| 8 | Jordi Arrese | 7 | 7 | ||||||||||
| 6 |  Goran Prpić | 5 | 4 | ||||||||||
| 8 | Jordi Arrese | 7 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 |  T Muster | 0r | |||||||||||||||||||||||||
 C Pistolesi | 1 | C Pistolesi | 3 | 3 | |||||||||||||||||||||||
 T Benhabiles | 6 | 3 | 6 | T Benhabiles | 6 | 6 | |||||||||||||||||||||
| F Luna | 4 | 6 | 4 | T Benhabiles | 2 | 6 | |||||||||||||||||||||
| Q | S Pescosolido | 6 | 6 | H de la Peña | 6 | 7 | |||||||||||||||||||||
| Q |  R Hanák | 3 | 1 | Q | S Pescosolido | 3 | 1 | ||||||||||||||||||||
| H de la Peña | 6 | 6 | H de la Peña | 6 | 6 | ||||||||||||||||||||||
| 7 | M Larsson | 0 | 2 | H de la Peña | 3 | 0r | |||||||||||||||||||||
| 4 |  M Filippini | 7 | 6 | N Kulti | 6 | 1 | |||||||||||||||||||||
| Q | C Suk | 6 | 1 | 4 | M Filippini | 1 | 3 | ||||||||||||||||||||
 A Mronz | 3 | 2 | N Kulti | 6 | 6 | ||||||||||||||||||||||
| N Kulti | 6 | 6 | N Kulti | 6 | 1 | 6 | |||||||||||||||||||||
 B Wuyts | 2 | 6 | 6 | 5 | F Davín | 3 | 6 | 2 | |||||||||||||||||||
| R Azar | 6 | 3 | 3 | B Wuyts | 3 | 2 | |||||||||||||||||||||
 J Brown | 3 | 6 | 3 | 5 | F Davín | 6 | 6 | ||||||||||||||||||||
| 5 | F Davín | 6 | 2 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | G Prpić | 4 | 6 | 6 | |||||||||||||||||||||||
| P Vojtíšek | 6 | 3 | 1 | 6 | G Prpić | 7 | 6 | ||||||||||||||||||||
 V Paloheimo | 6 | 6 | V Paloheimo | 5 | 0 | ||||||||||||||||||||||
| M Střelba | 0 | 2 | 6 | G Prpić | 2 | 6 | 7 | ||||||||||||||||||||
| M Vajda | 3 | 6 | 6 | 3 | H Skoff | 6 | 3 | 6 | |||||||||||||||||||
| F Clavet | 6 | 4 | 2 | M Vajda | 4 | 1 | |||||||||||||||||||||
| L Duncan | 2 | 1 | 3 | H Skoff | 6 | 6 | |||||||||||||||||||||
| 3 | H Skoff | 6 | 6 | 6 | G Prpić | 5 | 4 | ||||||||||||||||||||
| 8 | J Arrese | 6 | 6 | 8 | J Arrese | 7 | 6 | ||||||||||||||||||||
| WC | S Doseděl | 4 | 4 | 8 | J Arrese | 2 | 6 | 6 | |||||||||||||||||||
| C Pioline | 6 | 2 | WC | J Kodeš Jr. | 6 | 0 | 2 | ||||||||||||||||||||
| WC | J Kodeš Jr. | 7 | 6 | 8 | J Arrese | w/o | |||||||||||||||||||||
| C Saceanu | 6 | 6 | C Saceanu | ||||||||||||||||||||||||
| WC | M Damm | 4 | 3 | C Saceanu | 6 | 2 | 7 | ||||||||||||||||||||
| Q | S Hiršzon | 6 | Q | S Hiršzon | 2 | 6 | 6 | ||||||||||||||||||||
| 2 | G Pérez Roldán | 1 | r | ||||||||||||||||||||||||
Grant Stafford and Kevin Ullyett were the defending champions. Stafford chose to compete at Indianapolis in the same week. Ullyett partnered with Piet Norval but lost in the semifinals to the eventual champions Justin Gimelstob and Sébastien Lareau.
Justin Gimelstob and Sébastien Lareau won in the final over David Adams and John-Laffnie de Jager, 7–5, 6–7(2–7), 6–3.
Paul Haarhuis and Yevgeny Kafelnikov were the defending champions, but Kafelnikov chose to not compete this year in order to focus on the singles tournament.
David Adams and Jeff Tarango were the defending champions, but lost in first round to Pablo Albano and Sebastián Prieto.
Neil Broad and Kevin Ullyett were the defending champions, but lost in semifinals to Michael Kohlmann and Nicklas Kulti.
Nicklas Kulti and Magnus Larsson were the defending champions, but lost in second round to Lan Bale and John-Laffnie de Jager.
Paul Kilderry and Pavel Vízner were the defending champions, but Kilderry did not compete this year. Vízner teamed up with Martin Damm and lost in semifinals to tournament winners Jacco Eltingh and Paul Haarhuis.
Ellis Ferreira and Jan Siemerink were the defending champions, but competed this year with different partners. Ferreira teamed up with Patrick Galbraith and lost in quarterfinals to tournament winners Donald Johnson and Francisco Montana, while Siemerink teamed up with Menno Oosting and lost in first round to Pablo Albano and Àlex Corretja.
David Ekerot and Jeff Tarango were the defending champions, but competed this year with different partners. Ekerot teamed up with Peter Nyborg and lost to tournament winners Nicklas Kulti and Mikael Tillström, while Tarango teamed up with Jack Waite and lost in semifinals to tournament runners-up Magnus Gustafsson and Magnus Larsson.
Todd Woodbridge and Mark Woodforde were the defending champions, but lost in the quarterfinals to tournament runners-up Scott Davis and Todd Martin.
Jim Grabb and Richey Reneberg were the defending champions, but Grabb did not compete this year. Reneberg teamed up with Chris Woodruff and lost in the first round to Michael Tebbutt and Mikael Tillström.
Stefan Edberg and Petr Korda were the defending champions, but lost in the first round to Gary Muller and Danie Visser.
The 1993 Copenhagen Open singles was the singles event of the fifth edition of the Copenhagen Open, a tennis tournament held in Copenhagen, Denmark which was part of the ATP World Series and part of the European early indoor court season. Magnus Larsson was the defending champion, but was forced to withdraw before his Semifinal match.
The 1993 Copenhagen Open doubles was the doubles event of the fifth edition of the Copenhagen Open, a tennis tournament held in Copenhagen, Denmark which was part of the ATP World Series and part of the European early indoor court season. Nicklas Kulti and Magnus Larsson were the defending champions, but were forced to withdraw before their semifinal match.
Richard Fromberg was the defending champion, but did not compete this year.
Magnus Gustafsson was the defending champion, but lost in the second round to Tomás Carbonell.
Todd Woodbridge and Mark Woodforde were the defending champions, but decided to compete at Indian Wells in the same week.
The 1993 Skoda Czech Open was a men's tennis tournament played on Clay in Prague, Czech Republic as part of the International Series of the 1993 ATP Tour. Karel Nováček was the defending champion, but he did not compete.
The 1991 PCzechoslovak Open was a men's tennis tournament played on Clay in Prague, Czech Republic that was part of the International Series of the 1991 ATP Tour. Jordi Arrese was the defending champion, but lost in the second round to Thomas Muster.
Guillermo Pérez Roldán was the two-time defending champion, but did not compete this year.
Jordi Arrese and Carlos Costa were the defending champions, but none competed this year. Arrese chose to compete at the Summer Olympics in Barcelona, winning the silver medal in singles.