# 1988 Dutch Open – Singles

Miloslav Mečíř was the defending champion, but did not compete this year.
Emilio Sánchez won the title by defeating Guillermo Pérez Roldán 6–3, 6–1, 3–6, 6–3 in the final.

## Seeds

* Guillermo Pérez Roldán (final)
* Emilio Sánchez (champion)
* Claudio Mezzadri (quarterfinals)
* Magnus Gustafsson (semifinals)
* Mark Woodforde (semifinals)
* Alberto Mancini (quarterfinals)
* Tore Meinecke (first round)
* Eduardo Bengoechea (quarterfinals)

## 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 | Final | Final |
| 1 | Guillermo Pérez Roldán | 7 | 2 | 6 | | | | | | |
| 4 | Magnus Gustafsson | 6 | 6 | 3 | | | | | | |
| 4 | Magnus Gustafsson | 6 | 6 | 3 | 1 | Guillermo Pérez Roldán | 3 | 1 | 6 | 3 |
| | | | | | 2 | Emilio Sánchez | 6 | 6 | 3 | 6 |
| 5 | Mark Woodforde | 4 | 3 | | 2 | Emilio Sánchez | 6 | 6 | 3 | 6 |
| 2 | Emilio Sánchez | 6 | 6 | | | | | | | |

### Top half

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | G Pérez Roldán | 6 | 6 | | | | | | | | | | | | | | |
| | L Pimek | 2 | 1 | 1 | G Pérez Roldán | 6 | 6 | | | | | | | | | | |
| | P Vojtíšek | 6 | 6 | | P Vojtíšek | 3 | 4 | | | | | | | | | | |
| | B Stankovič | 2 | 2 | | | | | 1 | G Pérez Roldán | 7 | 7 | | | | | | |
| | P Rebolledo | 6 | 6 | | | | | | P Rebolledo | 5 | 6 | | | | | | |
| Q | P Haarhuis | 2 | 2 | | P Rebolledo | 6 | 6 | | | | | | | | | | |
| | N Kroon | 6 | 6 | | N Kroon | 0 | 4 | | | | | | | | | | |
| 7 | T Meinecke | 2 | 4 | | | | | | | | | | 1 | G Pérez Roldán | 7 | 2 | 6 |
| 4 | M Gustafsson | 6 | 6 | | | | | | | | | | 4 | M Gustafsson | 6 | 6 | 3 |
| | S Casal | 4 | 4 | 4 | M Gustafsson | 6 | 6 | | | | | | | | | | |
| Q | G Marzenell | 7 | 6 | Q | G Marzenell | 4 | 1 | | | | | | | | | | |
| | P Korda | 5 | 3 | | | | | 4 | M Gustafsson | 2 | 7 | 6 | | | | | |
| | F Yunis | 6 | 6 | | | | | 6 | A Mancini | 6 | 5 | 0 | | | | | |
| | H Schwaier | 4 | 4 | | F Yunis | 4 | 2 | | | | | | | | | | |
| | U Stenlund | 4 | 1 | 6 | A Mancini | 6 | 6 | | | | | | | | | | |
| 6 | A Mancini | 6 | 6 | | | | | | | | | | | | | | |

### Bottom 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 |
| 5 | M Woodforde | 4 | 6 | 6 | | | | | | | | | | | | |
| Q | M Ostoja | 6 | 3 | 4 | 5 | M Woodforde | 6 | 6 | | | | | | | | |
| | J Gunnarsson | 7 | 6 | | | J Gunnarsson | 1 | 3 | | | | | | | | |
| WC | C Limberger | 5 | 3 | | | | | | 5 | M Woodforde | 7 | 6 | | | | |
| Q | JW Lodder | 4 | 6 | 7 | | | | | 3 | C Mezzadri | 5 | 2 | | | | |
| | D Keretić | 6 | 3 | 5 | Q | JW Lodder | 2 | 4 | | | | | | | | |
| | G Bloom | 4 | 1 | | 3 | C Mezzadri | 6 | 6 | | | | | | | | |
| 3 | C Mezzadri | 6 | 6 | | | | | | | | | | 5 | M Woodforde | 4 | 3 |
| 8 | E Bengoechea | 6 | 6 | | | | | | | | | | 2 | E Sánchez | 6 | 6 |
| | M Oosting | 1 | 3 | | 8 | E Bengoechea | 6 | 6 | | | | | | | | |
| | U Riglewski | 2 | 7 | 3 | | T Nijssen | 2 | 2 | | | | | | | | |
| | T Nijssen | 6 | 5 | 6 | | | | | 8 | E Bengoechea | 1 | 6 | | | | |
| WC | P Dogger | 6 | 6 | 6 | | | | | 2 | E Sánchez | 6 | 7 | | | | |
| WC | H van Boeckel | 7 | 3 | 2 | WC | P Dogger | 3 | 2 | | | | | | | | |
| | S Matsuoka | 3 | 2 | | 2 | E Sánchez | 6 | 6 | | | | | | | | |
| 2 | E Sánchez | 6 | 6 | | | | | | | | | | | | | |