WTA tournament
Japan Open
Tier III · Hard · 9 editions on record, 2000–2008.
Most titles
- Maria Sharapova2003, 20042
- Julie Halard Decugis20001
- Monica Seles20011
- Jill Craybas20021
- Nicole Vaidisova20051
Champions
| Season | Event | Final | Draw |
|---|---|---|---|
| 2008 | Japan Open Tier III · Hard · 32 draw | Caroline Wozniacki d. Kaia Kanepi 6-2 3-6 6-1 | |
| 2007 | Japan Open Tier III · Hard · 32 draw | Virginie Razzano d. Venus Williams 4-6 7-6(7) 6-4 | |
| 2006 | Japan Open Tier III · Hard · 32 draw | Marion Bartoli d. Aiko Nakamura 2-6 6-2 6-2 | |
| 2005 | Japan Open Tier III · Hard · 32 draw | Nicole Vaidisova d. Tatiana Golovin 7-6(4) 3-2 RET | |
| 2004 | Japan Open Tier III · Hard · 30 draw | Maria Sharapova d. Mashona Washington 6-0 6-1 | |
| 2003 | Japan Open Tier III · Hard · 30 draw | Maria Sharapova d. Aniko Kapros 2-6 6-2 7-6(5) | |
| 2002 | Japan Open Tier III · Hard · 30 draw | Jill Craybas d. Silvija Talaja 2-6 6-4 6-4 | |
| 2001 | Japan Open Tier III · Hard · 30 draw | Monica Seles d. Tamarine Tanasugarn 6-3 6-2 | |
| 2000 | Japan Open Tier III · Hard · 30 draw | Julie Halard Decugis d. Amy Frazier 5-7 7-5 6-4 |