# 1988 Cedok Open – Singles

Marián Vajda was the defending champion, but lost in the first round to Martin Střelba.
Thomas Muster won the title by defeating Guillermo Pérez Roldán 6–4, 5–7, 6–2 in the final.

## Seeds

* Miloslav Mečíř (quarterfinals)
* Guillermo Pérez Roldán (final)
* Thomas Muster (champion)
* Tomáš Šmíd (second round)
* Lawson Duncan (quarterfinals)
* Milan Šrejber (quarterfinals)
* Horst Skoff (second round)
* Andrei Olhovskiy (second 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 | Final | Final | Final | Final | Final |
| | Fernando Luna | 2 | 1 | | | | | |
| 3 | Thomas Muster | 6 | 6 | | | | | |
| 3 | Thomas Muster | 6 | 6 | 3 | Thomas Muster | 6 | 5 | 6 |
| | | | | 2 | Guillermo Pérez Roldán | 4 | 7 | 2 |
| WC | Martin Střelba | 1 | 1 | 2 | Guillermo Pérez Roldán | 4 | 7 | 2 |
| 2 | Guillermo Pérez Roldán | 6 | 6 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | M Mečíř | 6 | 6 | | | | | | | | | | | | | |
| | P Korda | 1 | 2 | | 1 | M Mečíř | 6 | 6 | | | | | | | | |
| | M Westphal | 7 | 4 | 6 | | M Westphal | 2 | 1 | | | | | | | | |
| WC | T Anzari | 5 | 6 | 4 | | | | | 1 | M Mečíř | 2 | 4 | | | | |
| | F Luna | 6 | 6 | | | | | | | F Luna | 6 | 6 | | | | |
| WC | P Vízner | 2 | 2 | | | F Luna | 6 | 6 | | | | | | | | |
| | B Stankovič | 1 | 1 | | 7 | H Skoff | 3 | 1 | | | | | | | | |
| 7 | H Skoff | 6 | 6 | | | | | | | | | | | F Luna | 2 | 1 |
| 3 | T Muster | 6 | 6 | | | | | | | | | | 3 | T Muster | 6 | 6 |
| Q | G Bezecny | 2 | 1 | | 3 | T Muster | 6 | 6 | | | | | | | | |
| | J Windahl | 6 | 6 | | | J Windahl | 2 | 3 | | | | | | | | |
| Q | J Bulant | 2 | 4 | | | | | | 3 | T Muster | 6 | 6 | | | | |
| | J Čihák | 4 | 6 | 6 | | | | | 5 | L Duncan | 2 | 1 | | | | |
| | S Shaw | 6 | 4 | 3 | | J Čihák | 3 | 5 | | | | | | | | |
| | J Cunha e Silva | 0 | 6 | 1 | 5 | L Duncan | 6 | 7 | | | | | | | | |
| 5 | L Duncan | 6 | 1 | 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 | M Šrejber | 5 | 7 | 6 | | | | | | | | | | | | | |
| | J Letts | 7 | 5 | 3 | 6 | M Šrejber | 6 | 6 | | | | | | | | | |
| | L Pimek | 6 | 5 | 6 | | L Pimek | 1 | 4 | | | | | | | | | |
| | J Navrátil | 0 | 7 | 4 | | | | | | 6 | M Šrejber | 2 | 1 | | | | |
| | M Vajda | 3 | 6 | | | | | | | WC | M Střelba | 6 | 6 | | | | |
| WC | M Střelba | 6 | 7 | | WC | M Střelba | 5 | 6 | 6 | | | | | | | | |
| | F Yunis | 6 | 1 | 4 | 4 | T Šmíd | 7 | 2 | 4 | | | | | | | | |
| 4 | T Šmíd | 3 | 6 | 6 | | | | | | | | | | WC | M Střelba | 1 | 1 |
| 8 | A Olhovskiy | 6 | 6 | | | | | | | | | | | 2 | G Pérez Roldán | 6 | 6 |
| | M Fioroni | 4 | 2 | | 8 | A Olhovskiy | 1 | 6 | | | | | | | | | |
| | K Nováček | 6 | 6 | | | K Nováček | 6 | 7 | | | | | | | | | |
| | P Lindgren | 2 | 2 | | | | | | | | K Nováček | 4 | 4 | | | | |
| Q | R Vogel | 5 | 7 | 4 | | | | | | 2 | G Pérez Roldán | 6 | 6 | | | | |
| Q | V Roubíček | 7 | 6 | 6 | Q | V Roubíček | 2 | 1 | | | | | | | | | |
| | A Cherkasov | 2 | 7 | 6 | 2 | G Pérez Roldán | 6 | 6 | | | | | | | | | |
| 2 | G Pérez Roldán | 6 | 5 | 7 | | | | | | | | | | | | | |