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| 2017 Japan Women's Open | ||||
|---|---|---|---|---|
| Date | September 11–17 | |||
| Edition | 9th | |||
| Category | WTA International | |||
| Draw | 32S / 16D | |||
| Prize money | $250,000 | |||
| Surface | Hard | |||
| Location | Tokyo, Japan | |||
| Venue | Ariake Coliseum | |||
| Champions | ||||
| Singles | ||||
 Zarina Diyas | ||||
| Doubles | ||||
 Shuko Aoyama / Yang Zhaoxuan | ||||
| ||||
The2017 Japan Women's Open (also known as the2017 Hashimoto Sogyo Japan Women's Open for sponsorship reasons) was a women'stennis tournament played on outdoorhard courts. It was the ninth edition of theJapan Women's Open, and part of theWTA International tournaments of the2017 WTA Tour. It was held at theAriake Coliseum in Tokyo, Japan, from September 11 through September 17, 2017.
| Event | W | F | SF | QF | Round of 16 | Round of 32 | Q | Q3 | Q2 | Q1 |
| Singles | 280 | 180 | 110 | 60 | 30 | 1 | 18 | 14 | 10 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|
| Doubles | 1 | — | — | — | — | — |
| Event | W | F | SF | QF | Round of 16 | Round of 321 | Q | Q2 | Q1 |
| Singles | $43,000 | $21,400 | $11,300 | $5,900 | $3,310 | $2,925 | $1,005 | $730 | $530 |
| Doubles2 | $12,300 | $6,400 | $3,435 | $1,820 | $960 | — | — | — | — |
1 Qualifiers prize money is also the Round of 32 prize money
2 Per team
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 FRA | Kristina Mladenovic | 13 | 1 |
| CHN | Zhang Shuai | 26 | 2 |
 BEL | Elise Mertens | 39 | 3 |
 CZE | Kristýna Plíšková | 41 | 4 |
 AUS | Samantha Stosur | 44 | 5 |
| JPN | Naomi Osaka | 45 | 6 |
 USA | Alison Riske | 49 | 7 |
| KAZ | Yulia Putintseva | 50 | 8 |
The following players received wildcards into the singles main draw:
The following player received entry using a protected ranking:
The following players received entry from the qualifying draw:
Lauren Davis → replaced by
Jana ČepelováMagdaléna Rybáriková → replaced by
Sara Sorribes TormoKateřina Siniaková → replaced byKurumi Nara
Natalia Vikhlyantseva → replaced by
Richèl Hogenkamp
Donna Vekić → replaced byHan XinyunMarkéta Vondroušová → replaced by
Aliaksandra SasnovichZheng Saisai → replaced by
Hsieh Su-wei| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| JPN | Makoto Ninomiya | CZE | Renata Voráčová | 70 | 1 |
| JPN | Eri Hozumi | JPN | Miyu Kato | 78 | 2 |
 UKR | Lyudmyla Kichenok |  SLO | Katarina Srebotnik | 82 | 3 |
| JPN | Shuko Aoyama | CHN | Yang Zhaoxuan | 86 | 4 |
The following pairs received wildcards into the doubles main draw:
Zarina Diyas def.Miyu Kato, 6–2, 7–5[1]Shuko Aoyama /Yang Zhaoxuan def.Monique Adamczak /Storm Sanders, 6–0, 2–6, [10–5]