2015 Japan Women's Open

The 2015 Japan Women's Open was a women's tennis tournament played on outdoor hard courts. It was the seventh edition of the Japan Women's Open, and part of the WTA International tournaments of the 2015 WTA Tour. It was held at the Ariake Coliseum in Tokyo, Japan, from September 14 through September 20, 2015. The tournament was moved from Osaka to Tokyo starting this year.

Prize money
1 Qualifiers prize money is also the Round of 32 prize money 2 Per team

Seeds

 * Rankings are as of August 31, 2015.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇯🇵 Kimiko Date-Krumm
 * 🇯🇵 Nao Hibino
 * 🇪🇸 Carla Suárez Navarro

The following players received entry from the qualifying draw:
 * 🇯🇵 Hiroko Kuwata
 * 🇯🇵 Naomi Osaka
 * 🇯🇵 Risa Ozaki
 * 🇷🇺 Alexandra Panova

Withdrawals

 * Before the tournament
 * 🇸🇰 Jana Čepelová → replaced by Kiki Bertens
 * 🇷🇺 Margarita Gasparyan → replaced by 🇷🇸 Bojana Jovanovski
 * 🇮🇹 Karin Knapp → replaced by 🇯🇵 Misaki Doi
 * 🇸🇰 Anna Karolína Schmiedlová → replaced by Hsieh Su-wei
 * 🇨🇿 Barbora Strýcová → replaced by 🇺🇦 Kateryna Bondarenko

Seeds

 * 1 Rankings are as of August 31, 2015.

Other entrants
The following pairs received wildcards into the doubles main draw:
 * 🇯🇵 Misaki Doi / 🇯🇵 Kurumi Nara
 * 🇯🇵 Eri Hozumi / 🇯🇵 Miyu Kato

Singles

 * 🇧🇪 Yanina Wickmayer def. 🇵🇱 Magda Linette, 4–6, 6–3, 6–3

Doubles

 * Chan Hao-ching / Chan Yung-jan def. 🇯🇵 Misaki Doi / 🇯🇵 Kurumi Nara, 6–1, 6–2