2017 Japan Women's Open
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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 | |
The 2017 Japan Women's Open (also known as the Hashimoto Sogyo Japan Women's Open for sponsorship reasons) was a women's tennis tournament played on outdoor hard courts. It was the ninth edition of the Japan Women's Open, and part of the WTA International tournaments of the 2017 WTA Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from September 11 through September 17, 2017. Unseeded Zarina Diyas, who qualified for the main draw, won the singles title.[1][2]
Singles
Zarina Diyas defeated 
Miyu Kato, 6–2, 7–5
Doubles
- Shuko Aoyama /
Yang Zhaoxuan defeated 
Monique Adamczak / Storm Sanders, 6–0, 2–6, [10–5]
Points and prize money
| 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 | — | — | — | — | — |
Prize money
| 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 | — | — | — | — |
| Doubles prize money per team | |||||||||
1 Qualifiers prize money is also the Round of 32 prize money
Singles main-draw entrants
Seeds
| 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 |
- Rankings are as of August 28, 2017
Other entrants
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:
Withdrawals
- Before the tournament
Lauren Davis → replaced by 
Jana Čepelová- Magdaléna Rybáriková → replaced by
Sara Sorribes Tormo 
Kateřina Siniaková → replaced by Kurumi Nara
Natalia Vikhlyantseva → replaced by 
Richèl Hogenkamp
Donna Vekić → replaced by Han Xinyun- Markéta Vondroušová → replaced by
Aliaksandra Sasnovich - Zheng Saisai → replaced by
Hsieh Su-wei
