title: 1989 Czechoslovak Open – Singles
text: # 1989 Czechoslovak Open – Singles
  
  Thomas Muster was the defending champion, but did not compete this year.
  
  Marcelo Filippini won the title by defeating Horst Skoff 7–5, 7–6 in the final.
  
  ## Seeds
  
  * Jordi Arrese (second round)
  * Horst Skoff (final)
  * Karel Nováček (first round)
  * Marcelo Filippini (champion)
  * Martin Střelba (quarterfinals)
  * Eduardo Bengoechea (second round)
  * Fernando Luna (first round)
  * Lawson Duncan (first round)
  
  ## Draw
  
  ### Key
  
  * Q = Qualifier
  * WC = Wild card
  * LL = Lucky loser
  * Alt = Alternate
  * SE = Special exempt
  * PR = Protected ranking
  * ITF = ITF entry
  * JE = Junior exempt
  * w/o = Walkover
  * r = Retired
  * d = Defaulted
  * SR = Special ranking
  
  ### Finals
  
  | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
  | - | - | - | - | - | - | - | - | - |
  | | Michael Tauson | 2 | 6 | 3 | | | | |
  | 4 | Marcelo Filippini | 6 | 2 | 6 | | | | |
  | 4 | Marcelo Filippini | 6 | 2 | 6 | 4 | Marcelo Filippini | 7 | 7 |
  | | | | | | 2 | Horst Skoff | 5 | 6 |
  | | Franco Davín | 2 | 2 | | 2 | Horst Skoff | 5 | 6 |
  | 2 | Horst Skoff | 6 | 6 | | | | | |
  
  ### Top half
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 1 | J Arrese | 6 | 7 | | | | | | | | | | | | | | | |
  | | G Bloom | 2 | 6 | | 1 | J Arrese | 1 | 6 | | | | | | | | | | |
  | | P Korda | 6 | 6 | | | P Korda | 6 | 7 | | | | | | | | | | |
  | Q | Ģ Dzelde | 2 | 0 | | | | | | | | P Korda | 4 | 0 | | | | | |
  | | T Haldin | 2 | 6 | 1 | | | | | | | M Tauson | 6 | 6 | | | | | |
  | | M Tauson | 6 | 1 | 6 | | M Tauson | 7 | 5 | 6 | | | | | | | | | |
  | | G Giussani | 5 | 6 | 7 | | G Giussani | 6 | 7 | 4 | | | | | | | | | |
  | 8 | L Duncan | 7 | 0 | 5 | | | | | | | | | | | M Tauson | 2 | 6 | 3 |
  | 4 | M Filippini | 6 | 6 | | | | | | | | | | | 4 | M Filippini | 6 | 2 | 6 |
  | | J Bulant | 1 | 0 | | 4 | M Filippini | 6 | 6 | | | | | | | | | | |
  | Q | Petr Hájek | 4 | 6 | | | G Rivas | 1 | 1 | | | | | | | | | | |
  | | G Rivas | 6 | 7 | | | | | | | 4 | M Filippini | 6 | 6 | | | | | |
  | | F Clavet | 3 | 6 | 6 | | | | | | 5 | M Střelba | 3 | 4 | | | | | |
  | WC | S Doseděl | 6 | 4 | 1 | | F Clavet | 2 | 6 | 1 | | | | | | | | | |
  | | T Šmíd | 3 | 4 | | 5 | M Střelba | 6 | 2 | 6 | | | | | | | | | |
  | 5 | M Střelba | 6 | 6 | | | | | | | | | | | | | | | |
  
  ### Bottom half
  
  | First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 6 | E Bengoechea | 6 | 6 | | | | | | | | | | | | | | |
  | WC | M Damm | 0 | 2 | | 6 | E Bengoechea | 4 | 6 | 4 | | | | | | | | |
  | | J Aguilera | 6 | 6 | | | J Aguilera | 6 | 3 | 6 | | | | | | | | |
  | WC | T Anzari | 3 | 2 | | | | | | | | J Aguilera | 4 | 1 | | | | |
  | | J Čihák | $0^r$ | | | | | | | | | F Davín | 6 | 6 | | | | |
  | Q | V Roubíček | 1 | | | Q | V Roubíček | 4 | 2 | | | | | | | | | |
  | | F Davín | 6 | 5 | 6 | | F Davín | 6 | 6 | | | | | | | | | |
  | 3 | K Nováček | 1 | 7 | 3 | | | | | | | | | | | F Davín | 2 | 2 |
  | 7 | F Luna | 6 | 2 | | | | | | | | | | | 2 | H Skoff | 6 | 6 |
  | Q | D Rikl | 7 | 6 | | Q | D Rikl | 2 | 6 | | | | | | | | | |
  | | M Ostoja | 6 | 6 | | | M Ostoja | 6 | 7 | | | | | | | | | |
  | | T Nydahl | 4 | 2 | | | | | | | | M Ostoja | 4 | 0 | | | | |
  | | C Suk | 6 | 6 | | | | | | | 2 | H Skoff | 6 | 6 | | | | |
  | | R Azar | 1 | 1 | | | C Suk | 4 | 6 | | | | | | | | | |
  | | C Allgårdh | 0 | 3 | | 2 | H Skoff | 6 | 7 | | | | | | | | | |
  | 2 | H Skoff | 6 | 6 | | | | | | | | | | | | | | |
  