| 1989 Suntory Japan Open Tennis Championships | ||||
|---|---|---|---|---|
| Date | 17–23 April | |||
| Edition | 16th | |||
| Category | Grand Prix (ATP) Category 2 (WTA) | |||
| Prize money | $425,000 (ATP) $100,000 (WTA) | |||
| Surface | Hard / outdoor | |||
| Location | Tokyo, Japan | |||
| Venue | Ariake Coliseum | |||
| Champions | ||||
| Men's singles | ||||
 Stefan Edberg[1] | ||||
| Women's singles | ||||
 Kumiko Okamoto | ||||
| Men's doubles | ||||
 Ken Flach /Robert Seguso[2] | ||||
| Women's doubles | ||||
 Jill Hetherington / Elizabeth Smylie | ||||
| ||||
The1989 Suntory Japan Open Tennis Championships was atennis tournament played onoutdoor hard courts at theAriake Coliseum inTokyo, Japan that was part of the1989 Nabisco Grand Prix and of Category 2 tier of the1989 WTA Tour. It was the 16th edition of the tournament and was held from 17 April through 23 April 1989. The men's singles and doubles finals were rescheduled from Sunday to Monday, 24 April due to rain.[3]Stefan Edberg andKumiko Okamoto won the singles titles.[3]
Stefan Edberg defeated
Ivan Lendl 6–3, 2–6, 6–4
Kumiko Okamoto defeatedElizabeth Smylie 6–4, 6–2
Ken Flach /Robert Seguso defeatedKevin Curren /David Pate 7–6, 7–6
Jill Hetherington /Elizabeth Smylie defeatedAnn Henricksson /Beth Herr 6–1, 6–3