Estoril Open 1998
Alberto Berasategui won the title, beating Thomas Muster 3–6 6–1 6–3 in the final.
Latest results
- Semifinal: Thomas Muster def. Karim Alami 3–6 6–2 6–4
- Semifinal: Alberto Berasategui def. Carlos Moya 6–1 6–1
- Quarterfinal: Alberto Berasategui def. Juan Antonio Marin 3–6 6–4 6–3
- Quarterfinal: Carlos Moya def. Carlos Costa 7–6(3) 6–7(5) 6–2
Estoril 1998 1998
- Defending champion
- Alex Corretja
Ranking points by round
| Champion | 250 |
| Runner-up | 165 |
| Semifinal | 100 |
| Quarterfinal | 50 |
| Round of 16 | 25 |
| Round of 32 | 0 |
| Qualifier bonus | 13 |
Recent finals
| Year | Champion | Runner-up |
|---|---|---|
| 1997 | Alex Corretja | Francisco Clavet |
| 1996 | Thomas Muster | Andrea Gaudenzi |
| 1995 | Thomas Muster | Albert Costa |
| 1994 | Carlos Costa | Andrei Medvedev |
| 1993 | Andrei Medvedev | Karel Novacek |
| 1992 | Carlos Costa | Sergi Bruguera |
| 1991 | Sergi Bruguera | Karel Novacek |
| 1990 | Emilio Sanchez | Franco Davin |
Matches by round
31 finishedFinal
1 finishedFin
Semifinals
2 finishedFin
Fin
Quarterfinals
4 finishedFin
Fin
Fin
Fin
Round of 16
8 finishedFin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Round of 32
16 finishedFin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin