1989 Dutch Open – Singles
# 1989 Dutch Open – Singles

Emilio Sánchez was the defending champion, but finished runner-up this year.

Karel Nováček won the tournament, beating Sánchez in the final, 6–2, 6–4.

## Seeds

* Kent Carlsson (first round)
* Emilio Sánchez (final)
* Andrei Chesnokov (quarterfinals)
* Horst Skoff (quarterfinals)
* Paolo Canè (semifinals)
* N/A
* Javier Sánchez (second round)
* Karel Nováček (champion)

## 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 |
| - | - | - | - | - | - | - | - |
| 8 | Karel Nováček | 6 | 7 | | | | |
| | Tomás Carbonell | 3 | 6 | | | | |
| | Tomás Carbonell | 3 | 6 | 8 | Karel Nováček | 6 | 6 |
| | | | | 2 | Emilio Sánchez | 2 | 4 |
| 5 | Paolo Canè | 2 | 2 | 2 | Emilio Sánchez | 2 | 4 |
| 2 | Emilio Sánchez | 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 |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | K Carlsson | 3 | 5 | | | | | | | | | | | | | | |
| | P Haarhuis | 6 | 7 | | | P Haarhuis | 7 | 6 | | | | | | | | | |
| Q | R Azar | 1 | 6 | 6 | Q | R Azar | 6 | 2 | | | | | | | | | |
| | N Kroon | 6 | 3 | 2 | | | | | | | P Haarhuis | 2 | 3 | | | | |
| | S Casal | 6 | 6 | | | | | | | 8 | K Nováček | 6 | 6 | | | | |
| | S Lochbihler | 2 | 2 | | | S Casal | 3 | 6 | 3 | | | | | | | | |
| | J Čihák | 6 | 3 | 6 | 8 | K Nováček | 6 | 3 | 6 | | | | | | | | |
| 8 | K Nováček | 2 | 6 | 7 | | | | | | | | | | 8 | K Nováček | 6 | 7 |
| 4 | H Skoff | 6 | 6 | | | | | | | | | | | | T Carbonell | 3 | 6 |
| | U Riglewski | 4 | 4 | | 4 | H Skoff | 6 | 7 | | | | | | | | | |
| | T Nydahl | 6 | 6 | 7 | | T Nydahl | 2 | 6 | | | | | | | | | |
| Q | F Clavet | 1 | 7 | 6 | | | | | | 4 | H Skoff | 5 | 3 | | | | |
| WC | HJ Davids | 1 | 4 | | | | | | | | T Carbonell | 7 | 6 | | | | |
| | C Pistolesi | 6 | 6 | | | C Pistolesi | 6 | 5 | 2 | | | | | | | | |
| | T Carbonell | 6 | 6 | | | T Carbonell | 4 | 7 | 6 | | | | | | | | |
| LL | R Kok | 1 | 2 | | | | | | | | | | | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 5 | P Canè | 6 | 6 | 6 | | | | | | | | | | | | | | |
| LL | P Nyborg | 4 | 7 | 1 | 5 | P Canè | 6 | 6 | | | | | | | | | | |
| | J Bulant | 6 | 2 | | Q | C Geyer | 4 | 2 | | | | | | | | | | |
| Q | C Geyer | 7 | 6 | | | | | | | 5 | P Canè | 7 | 1 | 6 | | | | |
| | D Pérez | 6 | 6 | | | | | | | 3 | A Chesnokov | 5 | 6 | 4 | | | | |
| | C Limberger | 1 | 0 | | | D Pérez | 2 | 2 | | | | | | | | | | |
| | T Champion | 3 | 1 | | 3 | A Chesnokov | 6 | 6 | | | | | | | | | | |
| 3 | A Chesnokov | 6 | 6 | | | | | | | | | | | | 5 | P Canè | 2 | 2 |
| 7 | J Sánchez | 6 | 7 | | | | | | | | | | | | 2 | E Sánchez | 6 | 6 |
| WC | P Dogger | 3 | 6 | | 7 | J Sánchez | 6 | 6 | 6 | | | | | | | | | |
| Q | J Eltingh | 5 | 1 | | | F Davín | 7 | 3 | 7 | | | | | | | | | |
| | F Davín | 7 | 6 | | | | | | | | F Davín | 7 | 1 | 3 | | | | |
| | A Võsand | 1 | 3 | | | | | | | 2 | E Sánchez | 6 | 6 | 6 | | | | |
| | G Giussani | 6 | 6 | | | G Giussani | 6 | 2 | 2 | | | | | | | | | |
| | T Nijssen | 6 | 5 | | 2 | E Sánchez | 1 | 6 | 6 | | | | | | | | | |
| 2 | E Sánchez | 7 | 7 | | | | | | | | | | | | | | | |
