# 1998 Rado Open – Singles

Àlex Corretja defeated Boris Becker in the final, 7–6$^{(7–5)}$, 7–5, 6–3 to win the singles tennis title at the 1998 Swiss Open.
Félix Mantilla was the defending champion, but lost in the quarterfinals to Becker.
This tournament marked the first professional appearance of future 20-time major champion and world No. 1 Roger Federer; he lost in the first round to lucky loser Lucas Arnold Ker.

## Seeds

Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.
* Marcelo Ríos (semifinals)
* Yevgeny Kafelnikov (first round)
* Àlex Corretja (champion)
* Cédric Pioline (second round)
* Félix Mantilla (quarterfinals)
* Albert Costa (quarterfinals)
* Alberto Berasategui (first round)
* Nicolas Kiefer (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 |
| 1 | Marcelo Ríos | 4 | 6$^4$ | | | | | | |
| | Boris Becker | 6 | 7 | | | | | | |
| | Boris Becker | 6 | 7 | | | Boris Becker | 6$^5$ | 5 | 3 |
| | | | | | 3 | Àlex Corretja | 7 | 7 | 6 |
| 3 | Àlex Corretja | 6 | 6$^3$ | 6 | 3 | Àlex Corretja | 7 | 7 | 6 |
| | Filip Dewulf | 3 | 7 | 3 | | | | | |

### 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 | M Ríos | 6 | 6 | | | | | | | | | | | | | | |
| | M Rosset | 3 | 3 | | 1 | M Ríos | 6 | 6 | | | | | | | | | |
| LL | L Arnold Ker | 6 | 6 | | LL | L Arnold Ker | 4 | 1 | | | | | | | | | |
| WC | R Federer | 4 | 4 | | | | | | | 1 | M Ríos | 6 | 7 | | | | |
| | G Kuerten | 6 | 6 | | | | | | | | F Clavet | 3 | 5 | | | | |
| | G Raoux | 4 | 4 | | | G Kuerten | 6 | 4 | 4 | | | | | | | | |
| | F Clavet | 6 | 6 | | | F Clavet | 2 | 6 | 6 | | | | | | | | |
| 7 | A Berasategui | 4 | 4 | | | | | | | | | | | 1 | M Ríos | 4 | 6$^4$ |
| 4 | C Pioline | 6 | 6 | | | | | | | | | | | | B Becker | 6 | 7 |
| | N Lapentti | 4 | 4 | | 4 | C Pioline | 6$^2$ | 5 | | | | | | | | | |
| | B Becker | 6 | 6$^7$ | 7 | | B Becker | 7 | 7 | | | | | | | | | |
| WC | G Bastl | 4 | 7 | 5 | | | | | | | B Becker | 6 | 6 | | | | |
| | F Santoro | 7 | 6 | | | | | | | 5 | F Mantilla | 4 | 4 | | | | |
| | B Ulihrach | 5 | 3 | | | F Santoro | 4 | 6 | 2 | | | | | | | | |
| 5 | F Mantilla | 6 | 6 | | 5 | F Mantilla | 6 | 0 | 6 | | | | | | | | |
| Q | T Guardiola | 2 | 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 | Semifinals |
| 6 | A Costa | 5 | 6 | 6 | | | | | | | | | | | | | | | |
| Q | D Orsanic | 7 | 2 | 3 | 6 | A Costa | 7 | 6 | | | | | | | | | | | |
| | G Blanco | 6 | 6 | | | G Blanco | 6$^3$ | 3 | | | | | | | | | | | |
| Q | T Carbonell | 4 | 3 | | | | | | | 6 | A Costa | 7 | 2 | 2 | | | | | |
| | C Doseděl | 7 | 6 | | | | | | | 3 | À Corretja | 5 | 6 | 6 | | | | | |
| WC | I Heuberger | 6$^4$ | 3 | | | C Doseděl | 0 | 5 | | | | | | | | | | | |
| 3 | À Corretja | 6 | 4 | 6 | 3 | À Corretja | 6 | 7 | | | | | | | | | | | |
| Q | O Gross | 4 | 6 | 1 | | | | | | | | | | | 3 | À Corretja | 6 | 6$^3$ | 6 |
| 8 | N Kiefer | 0 | 7 | 7 | | | | | | | | | | | | F Dewulf | 3 | 7 | 3 |
| | JA Viloca | 6 | 5 | 6$^8$ | 8 | N Kiefer | 6 | 3 | 6 | | | | | | | | | | |
| | J Alonso | 6 | 7 | | | J Alonso | 3 | 6 | 1 | | | | | | | | | | |
| | N Escudé | 2 | 5 | | | | | | | 8 | N Kiefer | 6 | 3 | 4 | | | | | |
| | F Dewulf | 3 | 7 | 6 | | | | | | | F Dewulf | 1 | 6 | 6 | | | | | |
| | A Portas | 6 | 6$^3$ | 2 | | F Dewulf | 3 | 7 | 6 | | | | | | | | | | |
| | F Meligeni | 6 | 4 | 6 | | F Meligeni | 6 | 5 | 3 | | | | | | | | | | |
| 2 | Y Kafelnikov | 3 | 6 | 3 | | | | | | | | | | | | | | | |

## Qualifying
### Qualifying seeds

* Lucas Arnold Ker (qualifying competition, Lucky loser)
* Oliver Gross (qualified)
* Jacobo Díaz (first round)
* Attila Sávolt (second round)
* Quino Muñoz (second round)
* Agustín Garizzio (qualifying competition)
* Tomás Carbonell (qualified)
* Óscar Serrano (second round)

### Qualifiers

* Tomás Carbonell
* Oliver Gross
* Daniel Orsanic
* Thierry Guardiola

### Lucky loser

* Lucas Arnold Ker (replaced Tommy Haas)

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Lucas Arnold Ker | 7 | 6 | | | | | | | | | | |
| | Joan Balcells | 5 | 1 | | | | | | | | | | |
| | Joan Balcells | 5 | 1 | | 1 | Lucas Arnold Ker | 4 | 6 | 6 | | | | |
| | | | | | | David Sánchez | 6 | 3 | 4 | | | | |
| | David Sánchez | 6 | 2 | 6 | | David Sánchez | 6 | 3 | 4 | | | | |
| | Rubén Fernández-Gil | 2 | 6 | 2 | | | | | | | | | |
| | Rubén Fernández-Gil | 2 | 6 | 2 | | | | | | 1 | Lucas Arnold Ker | 2 | 1 |
| | | | | | | | | | | 7 | Tomás Carbonell | 6 | 6 |
| | Massimo Valeri | 6 | 6 | | | | | | | | | | | 7 | Tomás Carbonell | 6 | 6 |
| | Gabrio Castrichella | 4 | 1 | | | | | | | | | | |
| | Gabrio Castrichella | 4 | 1 | | | Massimo Valeri | 6 | 4 | | | | | |
| | | | | | 7 | Tomás Carbonell | 7 | 6 | | | | | |
| | Fabio Maggi | 2 | 0 | | 7 | Tomás Carbonell | 7 | 6 | | | | | |
| 7 | Tomás Carbonell | 6 | 6 | | | | | | | | | | |

#### Second qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Oliver Gross | 6 | 6 | | | | | | | | | | |
| WC | Stéphane Bohli | 2 | 2 | | | | | | | | | | |
| WC | Stéphane Bohli | 2 | 2 | | 2 | Oliver Gross | 6 | 6 | | | | | |
| | | | | | | Sandro Della Piana | 4 | 1 | | | | | |
| | Sandro Della Piana | 1 | 7 | 7 | | Sandro Della Piana | 4 | 1 | | | | | |
| WC | Marco Chiudinelli | 6 | 6 | 5 | | | | | | | | | |
| WC | Marco Chiudinelli | 6 | 6 | 5 | | | | | | 2 | Oliver Gross | 6 | 6 |
| | | | | | | | | | | | Bertrand Madsen | 4 | 4 |
| | Bertrand Madsen | 7 | 6 | | | | | | | | | | | Bertrand Madsen | 4 | 4 |
| | Alexandre Strambini | 6 | 4 | | | | | | | | | | |
| | Alexandre Strambini | 6 | 4 | | | Bertrand Madsen | 6 | 3 | 6 | | | | |
| | | | | | 8 | Óscar Serrano | 3 | 6 | 3 | | | | |
| | Giorgio Galimberti | 2 | 2 | | 8 | Óscar Serrano | 3 | 6 | 3 | | | | |
| 8 | Óscar Serrano | 6 | 6 | | | | | | | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Jacobo Díaz | 4 | 6 | 1 | | | | | | | |
| | Luis Morejón | 6 | 0 | 6 | | | | | | | |
| | Luis Morejón | 6 | 0 | 6 | | Luis Morejón | 6 | 3 | | | |
| | | | | | | Frédéric Fontang | 1 | 2$^r$ | | | |
| | Michel Kratochvil | 6 | 7 | 1 | | Frédéric Fontang | 1 | 2$^r$ | | | |
| | Frédéric Fontang | 7 | 6 | 6 | | | | | | | |
| | Frédéric Fontang | 7 | 6 | 6 | | | | | Luis Morejón | 4 | 1 |
| | | | | | | | | | Daniel Orsanic | 6 | 6 |
| | Gregory Zavialoff | 4 | 2 | | | | | | | | | Daniel Orsanic | 6 | 6 |
| | Daniel Orsanic | 6 | 6 | | | | | | | | |
| | Daniel Orsanic | 6 | 6 | | | Daniel Orsanic | 6 | 6 | | | |
| | | | | | 5 | Quino Muñoz | 2 | 4 | | | |
| | Andrei Rybalko | 3 | 6 | 2 | 5 | Quino Muñoz | 2 | 4 | | | |
| 5 | Quino Muñoz | 6 | 4 | 6 | | | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Attila Sávolt | 6 | 6 | | | | | | | | | | | |
| | Niko Karagiannis | 4 | 4 | | | | | | | | | | | |
| | Niko Karagiannis | 4 | 4 | | 4 | Attila Sávolt | 3 | 4 | | | | | | |
| | | | | | | Thierry Guardiola | 6 | 6 | | | | | | |
| WC | Jun Kato | 3 | 6 | | | Thierry Guardiola | 6 | 6 | | | | | | |
| | Thierry Guardiola | 6 | 7 | | | | | | | | | | | |
| | Thierry Guardiola | 6 | 7 | | | | | | | | Thierry Guardiola | 7 | 0 | 6 |
| | | | | | | | | | | 6 | Agustín Garizzio | 6 | 6 | 4 |
| | Mariano Hood | 4 | 6 | 6 | | | | | | | | | | | 6 | Agustín Garizzio | 6 | 6 | 4 |
| WC | Francisco Montana | 6 | 2 | 4 | | | | | | | | | | |
| WC | Francisco Montana | 6 | 2 | 4 | | Mariano Hood | 6 | 3 | 6$^r$ | | | | | |
| | | | | | 6 | Agustín Garizzio | 3 | 6 | 5 | | | | | |
| | Andrei Merinov | 2 | 3 | | 6 | Agustín Garizzio | 3 | 6 | 5 | | | | | |
| 6 | Agustín Garizzio | 6 | 6 | | | | | | | | | | | |