| Singles | |
|---|---|
| 1990 ABN World Tennis Tournament | |
| Champion |
|
| Runner-up |
|
| Final score | 6–1, 6–3 |
| Draw | 32 |
| Seeds | 8 |
Jakob Hlasek was the defending champion, but did not participate that year.
Brad Gilbert won the title, defeating Jonas Svensson 6–1, 6–3, in the final.