WTA tournament
Tokyo Japan Open
WTA Tour · Hard · 20 editions on record, 1973–1994.
Most titles
- Kimiko Date Krumm1992, 1993, 19943
- Evonne Goolagong19731
- Maria Bueno19741
- Kazuko Sawamatsu19751
- Wendy Turnbull19761
Champions
| Season | Event | Final | Draw |
|---|---|---|---|
| 1994 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Kimiko Date Krumm d. Amy Frazier 7-5 6-0 | |
| 1993 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Kimiko Date Krumm d. Stephanie Rottier 6-1 6-3 | |
| 1992 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Kimiko Date Krumm d. Sabine Appelmans 7-5 3-6 6-3 | |
| 1991 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Lori Mcneil d. Sabine Appelmans 2-6 6-2 6-1 | |
| 1990 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Catarina Lindqvist Ryan d. Liz Smylie 6-3 6-2 | |
| 1988 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Patty Fendick d. Stephanie Rehe 6-3 7-5 | |
| 1987 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Katerina Maleeva d. Barbara Gerken 6-2 6-3 | |
| 1986 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Helen Kelesi d. Bettina Fulco 6-2 6-2 | |
| 1985 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Gabriela Sabatini d. Linda Gates 6-3 6-4 | |
| 1984 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Lilian Drescher d. Shawn Foltz 6-4 6-2 | |
| 1983 | Tokyo Japan Open WTA Tour | Etsuko Inoue d. Shelley Solomon 7-5 6-1 | |
| 1982 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Laura Arraya d. Pilar Vasquez 3-6 6-4 6-0 | |
| 1981 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Marie Pinterova d. Pam Casale 2-6 6-4 6-1 | |
| 1980 | Tokyo Japan Open WTA Tour · Hard · 32 draw | Mariana Simionescu d. Nerida Gregory 6-4 6-4 | |
| 1979 | Tokyo Japan Open WTA Tour | Betsy Nagelsen d. Naoko Sato 6-1 3-6 6-3 | |
| 1978 | Tokyo Japan Open WTA Tour · Clay | Ann Kiyomura Hayashi d. Sonoe Yonezawa 6-4 6-3 | |
| 1976 | Tokyo Japan Open WTA Tour · Clay | Wendy Turnbull d. Michele Gurdal 6-1 6-1 | |
| 1975 | Tokyo Japan Open WTA Tour · Clay | Kazuko Sawamatsu d. Ann Kiyomura Hayashi 6-2 3-6 6-1 | |
| 1974 | Tokyo Japan Open WTA Tour · Clay · 16 draw | Maria Bueno d. Katja Ebbinghaus 3-6 6-4 6-3 | |
| 1973 | Tokyo Japan Open WTA Tour · Clay · 10 draw | Evonne Goolagong d. Helga Masthoff 7-6 6-3 |