1998 Rado Open – Singles
| Singles | |
|---|---|
| 1998 Rado Open | |
| Champion | Àlex Corretja |
| Runner-up | Boris Becker |
| Score | 7–6(7–5), 7–5, 6–3 |
| Draw | 32 (3WC/4Q/1LL) |
| Seeds | 8 |
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.