| Singles | |
|---|---|
| 1998 BMW Open | |
| Champion |
|
| Runner-up |
|
| Final score | 6–7(4–7), 7–6(8–6), 6–3 |
Mark Philippoussis was the defending champion, but lost in the second round this year.
Thomas Enqvist won the title, defeating Andre Agassi 6–7(4–7), 7–6(8–6), 6–3 in the final.