1989 Tokyo Indoor – Singles
| Singles | |
|---|---|
| 1989 Tokyo Indoor | |
| Champion | Aaron Krickstein |
| Runner-up | Carl-Uwe Steeb |
| Score | 6–2, 6–2 |
| Draw | 32 |
| Seeds | 8 |
Boris Becker was the defending champion, but did not participate this year.
Aaron Krickstein won the tournament, beating Carl-Uwe Steeb in the final, 6–2, 6–2.