# 1998 Dutch Open – Singles

Sláva Doseděl was the defending champion, but the eight seeded Czech lost in the quarterfinals to qualifier Mariano Zabaleta. Magnus Norman won in the final 6–3, 6–3, 2–6, 6–4 against number six seed Richard Fromberg and captured the second title of his professional career.

## Seeds

Champion seeds are indicated in bold while text in italics indicates the round in which that seed was eliminated.
* Karol Kučera (semifinals)
* Felix Mantilla (first round)
* Magnus Gustafsson (second round)
* Thomas Johansson (first round)
* Andrea Gaudenzi (first round)
* Richard Fromberg (final)
* Dominik Hrbatý (quarterfinals)
* Sláva Doseděl (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 | Karol Kučera | 1 | 7$^7$ | 2 | | | | | | |
| 6 | Richard Fromberg | 6 | 6$^4$ | 6 | | | | | | |
| 6 | Richard Fromberg | 6 | 6$^4$ | 6 | 6 | Richard Fromberg | 3 | 3 | 6 | 4 |
| | | | | | | Magnus Norman | 6 | 6 | 2 | 6 |
| | Magnus Norman | 7 | 6 | | | Magnus Norman | 6 | 6 | 2 | 6 |
| Q | Mariano Zabaleta | 5 | 4 | | | | | | | |

### Section 1

| 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 | K Kučera | 6 | 3 | 7$^7$ | | | | | | | | | | | | | | |
| | M Safin | 2 | 6 | 6$^5$ | 1 | K Kučera | 7 | 6 | | | | | | | | | | |
| Q | T Larsen | 6 | 6 | | Q | T Larsen | 5 | 3 | | | | | | | | | | |
| | D Pescariu | 4 | 4 | | | | | | | 1 | K Kučera | 6 | 6 | | | | | |
| | A Portas | 6 | 3 | 6 | | | | | | 7 | D Hrbatý | 2 | 1 | | | | | |
| | P Haarhuis | 4 | 6 | 4 | | A Portas | 1 | 2 | | | | | | | | | | |
| | F Dewulf | 3 | 5 | | 7 | D Hrbatý | 6 | 6 | | | | | | | | | | |
| 7 | D Hrbatý | 6 | 7 | | | | | | | | | | | 1 | K Kučera | 1 | 7$^7$ | 2 |
| 3 | M Gustafsson | 6 | 6 | | | | | | | | | | | 6 | R Fromberg | 6 | 6$^4$ | 6 |
| | F Meligeni | 4 | 3 | | 3 | M Gustafsson | 6 | 1 | 3 | | | | | | | | | |
| | F Squillari | 4 | 5 | | Q | A Voinea | 4 | 6 | 6 | | | | | | | | | |
| Q | A Voinea | 6 | 7 | | | | | | | Q | A Voinea | 3 | 4 | | | | | |
| | B Ulihrach | 4 | 6 | 6$^1$ | | | | | | 6 | R Fromberg | 6 | 6 | | | | | |
| WC | D van Scheppingen | 6 | 3 | 7$^7$ | WC | D van Scheppingen | 3 | 4 | | | | | | | | | | |
| | A Pavel | 3 | 4 | | 6 | R Fromberg | 6 | 6 | | | | | | | | | | |
| 6 | R Fromberg | 6 | 6 | | | | | | | | | | | | | | | |

### Section 2

| 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 | A Gaudenzi | 3 | 2 | | | | | | | | | | | | | | | |
| | J Novák | 6 | 6 | | | J Novák | 1 | 3 | | | | | | | | | | |
| | M Norman | 6$^9$ | 5 | | | M Norman | 6 | 6 | | | | | | | | | | |
| | H Arazi | 7$^{11}$ | 1$^d$ | | | | | | | | M Norman | 6 | 6 | | | | | |
| | D Sanguinetti | 6$^3$ | 6 | 7 | | | | | | | G Blanco | 2 | 4 | | | | | |
| | Á Calatrava | 7$^7$ | 2 | 5 | | D Sanguinetti | 6 | 4 | 1 | | | | | | | | | |
| | G Blanco | 0 | 6 | 7$^7$ | | G Blanco | 2 | 6 | 6 | | | | | | | | | |
| 4 | T Johansson | 6 | 4 | 6$^5$ | | | | | | | | | | | | M Norman | 7 | 6 |
| 8 | S Doseděl | 7$^7$ | 6 | | | | | | | | | | | | Q | M Zabaleta | 5 | 4 |
| SE | M Puerta | 6$^5$ | 1 | | 8 | S Doseděl | 6 | 6 | | | | | | | | | | |
| Q | M Verkerk | 7 | 6 | | Q | M Verkerk | 4 | 4 | | | | | | | | | | |
| | J van Lottum | 5 | 3 | | | | | | | 8 | S Doseděl | 6 | 6$^5$ | 6$^5$ | | | | |
| SE | JA Marín | 6 | 4 | 6 | | | | | | Q | M Zabaleta | 2 | 7$^7$ | 7$^7$ | | | | |
| | J van Herck | 2 | 6 | 3 | SE | JA Marín | 1 | 6$^5$ | | | | | | | | | | |
| Q | M Zabaleta | 7$^7$ | 6 | | Q | M Zabaleta | 6 | 7$^7$ | | | | | | | | | | |
| 2 | F Mantilla | 6$^2$ | 2 | | | | | | | | | | | | | | | |