# 1998 Monte Carlo Open – Singles

Carlos Moyá defeated Cédric Pioline in the final, 6–3, 6–0, 7–5 to win the singles tennis title at the 1998 Monte Carlo Open.
Marcelo Ríos was the reigning champion, but did not participate this year.

## Seeds

The top eight seeds received a bye to the second round.
* Pete Sampras (third round)
* Petr Korda (quarterfinals)
* Greg Rusedski (second round)
* Yevgeny Kafelnikov (third round)
* Jonas Björkman (second round)
* Álex Corretja (quarterfinals)
* Richard Krajicek (semifinals)
* Gustavo Kuerten (third round)
* Félix Mantilla (first round)
* Cédric Pioline (final)
* Tim Henman (first round)
* Alberto Berasategui (semifinals)
* Mark Philippoussis (third round)
* Carlos Moyà (champion)
* Sergi Bruguera (second round)
* Álbert Costa (third 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 | Final |
| 10 | Cédric Pioline | 6 | 0 | 7$^7$ | | | | | |
| 12 | Alberto Berasategui | 3 | 6 | 6$^5$ | | | | | |
| 12 | Alberto Berasategui | 3 | 6 | 6$^5$ | 10 | Cédric Pioline | 3 | 0 | 5 |
| | | | | | 14 | Carlos Moyà | 6 | 6 | 7 |
| 14 | Carlos Moyà | 4 | 6 | 6 | 14 | Carlos Moyà | 6 | 6 | 7 |
| 7 | Richard Krajicek | 6 | 1 | 4 | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | P Sampras | 6 | 7 | | | | | | | | | |
| | A Agassi | 6 | 6 | | | A Agassi | 4 | 5 | | | | | | | | | |
| | T Martin | 2 | 1 | | | | | | 1 | P Sampras | 1 | 1 | | | | | |
| | F Santoro | 6 | 6 | | | | | | | F Santoro | 6 | 6 | | | | | |
| WC | A Clément | 2 | 1 | | | F Santoro | 6 | 6 | | | | | | | | | |
| Q | J Tarango | 1 | 6 | 5 | 15 | S Bruguera | 3 | 0 | | | | | | | | | |
| 15 | S Bruguera | 6 | 1 | 7 | | | | | | | | | | F Santoro | 6 | 2 | 4 |
| 10 | C Pioline | 6 | 3 | 6 | | | | | | | | | 10 | C Pioline | 1 | 6 | 6 |
| | C Costa | 2 | 6 | 3 | 10 | C Pioline | 6 | 7$^7$ | | | | | | | | | |
| Q | N Lapentti | 2 | 4 | | WC | S Grosjean | 1 | 6$^5$ | | | | | | | | | |
| WC | S Grosjean | 6 | 6 | | | | | | 10 | C Pioline | 7$^8$ | 6 | | | | | |
| | A Portas | 2 | 1 | | | | | | 8 | G Kuerten | 6$^6$ | 1 | | | | | |
| | F Clavet | 6 | 6 | | | F Clavet | 5 | 5 | | | | | | | | | |
| | | | | | 8 | G Kuerten | 7 | 7 | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 3 | G Rusedski | 4 | 6 | 3 | | | | | | | | | | |
| WC | B Becker | 5 | 6 | 6 | WC | B Becker | 6 | 3 | 6 | | | | | | | | | | |
| | J Siemerink | 7 | 3 | 1 | | | | | | WC | B Becker | 6 | 6 | | | | | | |
| | M Filippini | 6 | 2 | 6$^4$ | | | | | | 13 | M Philippoussis | 1 | 1 | | | | | | |
| | M Norman | 2 | 6 | 7$^7$ | | M Norman | 4 | 3 | | | | | | | | | | | |
| | J Alonso | 6$^9$ | 6 | 4 | 13 | M Philippoussis | 6 | 6 | | | | | | | | | | | |
| 13 | M Philippoussis | 7$^{11}$ | 4 | 6 | | | | | | | | | | | WC | B Becker | 7$^7$ | 5 | 1 |
| 12 | A Berasategui | 6 | 7 | | | | | | | | | | | | 12 | A Berasategui | 6$^4$ | 7 | 6 |
| | T Woodbridge | 0 | 5 | | 12 | A Berasategui | 6 | 7$^7$ | | | | | | | | | | | |
| Q | J Sánchez | 3 | 6 | 4 | WC | D Vacek | 0 | 6$^1$ | | | | | | | | | | | |
| WC | D Vacek | 6 | 4 | 6 | | | | | | 12 | A Berasategui | 3 | 6 | 6 | | | | | |
| | S Doseděl | 7$^7$ | 6 | | | | | | | | S Doseděl | 6 | 3 | 3 | | | | | |
| | R Fromberg | 6$^5$ | 4 | | | S Doseděl | 6 | 6 | | | | | | | | | | | |
| | | | | | 5 | J Björkman | 1 | 0 | | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 6 | Á Corretja | 7$^7$ | 6 | | | | | | | | | |
| | A Medvedev | 4 | 6 | 7$^9$ | | A Medvedev | 6$^4$ | 4 | | | | | | | | | |
| | G Ivanišević | 6 | 2 | 6$^7$ | | | | | | 6 | Á Corretja | 7$^7$ | 6 | | | | |
| | B Steven | 3 | 1 | | | | | | | SE | A Gaudenzi | 6$^1$ | 4 | | | | |
| SE | A Gaudenzi | 6 | 6 | | SE | A Gaudenzi | 6 | 4 | 6 | | | | | | | | |
| Q | G Blanco | 6 | 6 | | Q | G Blanco | 4 | 6 | 3 | | | | | | | | |
| 11 | T Henman | 2 | 4 | | | | | | | | | | | 6 | Á Corretja | 3 | 2 |
| 14 | C Moyà | 6 | 6 | | | | | | | | | | | 14 | C Moyà | 6 | 6 |
| | T Muster | 0 | 3 | | 14 | C Moyà | 6 | 6 | | | | | | | | | |
| | H Arazi | 6 | 6 | | | H Arazi | 1 | 1 | | | | | | | | | |
| Q | J Burillo | 4 | 0 | | | | | | | 14 | C Moyà | 6 | 6 | | | | |
| | T Johansson | 7 | 6$^{10}$ | 3 | | | | | | 4 | Y Kafelnikov | 2 | 3 | | | | |
| | M Woodforde | 5 | 7$^{12}$ | 6 | | M Woodforde | 6 | 2 | 2 | | | | | | | | |
| | | | | | 4 | Y Kafelnikov | 4 | 6 | 6 | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 7 | R Krajicek | 6 | 6 | | | | | | | | | | |
| LL | J A Viloca | 6 | 6 | | LL | J A Viloca | 4 | 2 | | | | | | | | | | |
| Q | D Nargiso | 3 | 4 | | | | | | 7 | R Krajicek | 6 | 6 | | | | | | |
| | M Rosset | 1 | 0$^r$ | | | | | | | B Ulihrach | 4 | 0 | | | | | | |
| | B Ulihrach | 6 | 3 | | | B Ulihrach | 6 | 6 | | | | | | | | | | |
| | N Kiefer | 6 | 6 | | | N Kiefer | 4 | 2 | | | | | | | | | | |
| 9 | F Mantilla | 1 | 4 | | | | | | | | | | | 7 | R Krajicek | 4 | 7$^7$ | 6 |
| 16 | Á Costa | 6 | 6 | | | | | | | | | | | 2 | P Korda | 6 | 6$^1$ | 1 |
| | T Enqvist | 1 | 3 | | 16 | Á Costa | 6 | 6 | | | | | | | | | | |
| | M Gustafsson | 6 | 7 | | | M Gustafsson | 4 | 2 | | | | | | | | | | |
| LL | K Alami | 3 | 5 | | | | | | 16 | Á Costa | 7 | 4 | 4 | | | | | |
| Q | S Schalken | 6 | 2 | 4 | | | | | 2 | P Korda | 5 | 6 | 6 | | | | | |
| | W Ferreira | 4 | 6 | 6 | | W Ferreira | 1 | 3 | | | | | | | | | | |
| | | | | | 2 | P Korda | 6 | 6 | | | | | | | | | | |