Tokyo Japan Open 1980 WTA
Final
| Winner | Loser | Score | |
|---|---|---|---|
| Mariana Simionescu | d. | Nerida Gregory | 6-4 6-4 |
Semifinals
| Winner | Loser | Score | |
|---|---|---|---|
| Mariana Simionescu | d. | Marie Pinterova | 4-6 6-3 6-4 |
| Nerida Gregory | d. | Dana Gilbert | 6-2 7-5 |
Quarterfinals
| Winner | Loser | Score | |
|---|---|---|---|
| Marie Pinterova | d. | Ivanna Madruga | 6-1 6-4 |
| Mariana Simionescu | d. | Li Qiao Yu | 6-4 6-3 |
| Dana Gilbert | d. | Heidi Eisterlehner | 6-4 3-6 6-4 |
| Nerida Gregory | d. | Julie Harrington | 6-3 6-3 |
Round of 16
| Winner | Loser | Score | |
|---|---|---|---|
| Ivanna Madruga | d. | Sonoe Yonezawa | 7-6 6-2 |
| Marie Pinterova | d. | Duk Hee Lee | 6-0 6-1 |
| Mariana Simionescu | d. | Naoko Sato | 6-3 7-6 |
| Li Qiao Yu | d. | Renata Tomanova | 4-6 6-4 6-0 |
| Heidi Eisterlehner | d. | Julie Filkoff | 6-2 6-2 |
| Dana Gilbert | d. | Vicki Beggs | 7-6 6-3 |
| Julie Harrington | d. | Marcie Louie | 3-6 6-3 6-3 |
| Nerida Gregory | d. | Mareen Louie Harper | 6-1 6-3 |
Round of 32
| Winner | Loser | Score | |
|---|---|---|---|
| Ivanna Madruga | d. | Masako Yanagi | 6-2 6-3 |
| Sonoe Yonezawa | d. | Jean Nachand | 6-4 4-6 6-2 |
| Marie Pinterova | d. | Soo Ok Kim | 6-2 6-2 |
| Duk Hee Lee | d. | Sylvie Rual | 6-3 7-5 |
| Mariana Simionescu | d. | Lindsay Morse | 6-4 4-6 6-3 |
| Naoko Sato | d. | Yukie Koizumi | 2-6 6-3 6-3 |
| Li Qiao Yu | d. | Cathy Fink | 6-2 6-4 |
| Renata Tomanova | d. | Penny Johnson | 6-1 6-4 |
| Heidi Eisterlehner | d. | Hu Na | 6-1 6-4 |
| Julie Filkoff | d. | Kate Glancy | 6-3 6-4 |
| Vicki Beggs | d. | Kiyoko Nomura | 6-3 6-3 |
| Dana Gilbert | d. | Yoko Kobayashi | 6-1 6-3 |
| Julie Harrington | d. | Emiko Okagawa | 6-3 6-3 |
| Marcie Louie | d. | Fumiko Furuhashi | 6-4 4-6 6-1 |
| Nerida Gregory | d. | Silvana Urroz | 6-1 6-2 |
| Mareen Louie Harper | d. | Li Lan Duan | 6-4 6-1 |
Data: Jeff Sackmann / Tennis Abstract — CC BY-NC-SA 4.0