The 2018 Japan Women's Open was a women's

tennis Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two teams of two players each (doubles (tennis), doubles). Each player uses a tennis racket st ...

tournament played on outdoor

hard court A hardcourt (or hard court) is a type of surface or floor on which a sport is played, most usually in reference to tennis courts. It is typically made of rigid materials such as Asphalt concrete, asphalt or concrete, and covered with acrylic resin ...

s. It was the tenth edition of the

Japan Women's Open The Japan Women's Open Tennis is a professional women's tennis tournament played on outdoor hard courts. The event is affiliated with the Women's Tennis Association (WTA), and is an WTA 250 tournament on the WTA Tour. As successor to the Japan O ...

, and part of the

WTA International tournaments The WTA International tournaments was a category for tennis tournaments of the Women's Tennis Association from the 2009 WTA Tour until 2020, which replaced the previous Tier III and Tier IV categories. As of 2021 these events have been reclassifie ...

of the

2018 WTA Tour The 2018 WTA Tour was the elite professional tennis circuit organised by the Women's Tennis Association (WTA) for the 2018 tennis season. The 2018 WTA Tour calendar comprises the Grand Slam (tennis), Grand Slam tournaments, supervised by the Inte ...

. It was held at the Regional Park Tennis Stadium in

Hiroshima is the capital of Hiroshima Prefecture in Japan. , the city had an estimated population of 1,199,391. The gross domestic product (GDP) in Greater Hiroshima, Hiroshima Urban Employment Area, was US$61.3 billion as of 2010. Kazumi Matsui has b ...

, Japan, from September 10 through September 16, 2018. This is the first year that the tournament was held in Hiroshima.

Point distribution

Prize money

_{¹ Qualifiers prize money is also the Round of 32 prize money}
_{² Per team}

Singles main-draw entrants

Seeds

* Rankings are as of August 27, 2018

Other entrants

The following players received wildcards into the singles main draw: *

Misaki Doi is a Japanese former professional tennis player. Her highest WTA rankings are No. 30 in singles and No. 77 in doubles. Doi reached two junior Grand Slam doubles finals – at Wimbledon in 2007 with Kurumi Nara, and at the Australian Open in ...

Nao Hibino is a Japanese professional tennis player. She has been ranked as high as world No. 56 in singles and No. 43 in doubles by the WTA. Hibino has won three singles titles and three doubles titles on the WTA Tour. She has also won nine singles and ...

* Miyu Kato The following player entered the singles main draw with a protected ranking: *

Mandy Minella Mandy Minella (born 22 November 1985) is a Luxembourgish politician and former professional tennis player. Having made her debut on the WTA Tour in 2001, she peaked at No. 66 in the WTA singles rankings in September 2012, and No. 47 in doubles ...

The following players received entry from the qualifying draw: *

Amanda Anisimova Amanda Kay Victoria Anisimova ( ; ; born August 31, 2001) is an American professional tennis player. She has a career-high singles WTA rankings, WTA ranking of world No. 13, achieved on 16 June 2025. Anisimova has won three WTA Tour titles, inc ...

Priscilla Hon Priscilla Hon (Chinese: 韓天遇; born 10 May 1998) is an Australian tennis player. She reached career-high WTA rankings in singles of No. 118 in October 2019, and No. 91 in doubles in April 2018. Personal life Hon was born in Brisbane in 19 ...

Arina Rodionova Arina Ivanovna Rodionova (; born 15 December 1989) is a Russian-born Australian professional tennis player. On 5 February 2024, she reached a career-high singles ranking of world No. 97. On 27 July 2015, she peaked at No. 41 in the doubles ra ...

Zhang Yuxuan Zhang Yuxuan (; ; born 19 August 1994) is a former professional tennis Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two teams of two ...

Withdrawals

;Before the tournament *

Ana Bogdan Ana Bogdan (born 25 November 1992) is a Romanian professional tennis player. Having made her tour debut in 2009, she peaked at No. 39 in the WTA rankings in July 2023. Bogdan had a successful junior career, reaching world No. 2 on 5 January 20 ...

→ replaced by

Fiona Ferro Fiona Ferro (born 12 March 1997) is a French-Belgian professional tennis player. She has career-high WTA rankings of world No. 39 in singles, attained on 8 March 2021, and No. 257 in doubles, reached on 17 May 2021. Ferro has won two singles tit ...

Jennifer Brady Jennifer Elizabeth Brady (born April 12, 1995) is an inactive American tennis player. She reached a career-high singles WTA ranking of No. 13 on 22 February 2021, and a career-high doubles ranking of 44 on 19 August 2019. Brady has won one WTA ...

→ replaced by

Jana Fett Jana Fett (; born 2 November 1996) is a Croatian tennis player. On 30 October 2017, Fett reached her best singles ranking of world No. 97, and on 21 May 2018, she reached her best doubles ranking of No. 348. Fett has won nine singles and five dou ...

Aliaksandra Sasnovich Aliaksandra Aliaksandraŭna Sasnovich (born 22 March 1994) is a Belarusian professional tennis player. She achieved her best singles ranking of world No. 29 on 19 September 2022, and peaked at No. 39 in the WTA doubles rankings on 23 August 2021 ...

→ replaced by

Duan Yingying Duan Yingying (; born 3 July 1989) is a former Chinese tennis player. In her career, she won one singles title and three doubles titles on the WTA Tour, and two WTA Challenger doubles titles, as well as eleven singles and three doubles titl ...

Stefanie Vögele Stefanie Vögele (born 10 March 1990) is a Swiss professional tennis player. She achieved a career-high singles ranking of world No. 42 on 11 November 2013. Her highest WTA rankings, WTA ranking in doubles is 100, which she reached on 5 January ...

→ replaced by

Magdalena Fręch Magdalena Fręch (; born 15 December 1997) is a Polish professional tennis player. She has a career-high singles ranking of world No. 22, achieved on 28 October 2024. On 8 August 2022, she peaked at No. 174 in the doubles WTA rankings, rankings. ...

Retirements

Yulia Putintseva Yulia Antonovna Putintseva (, ; born 7 January 1995) is a Russian-born Kazakhstani professional tennis player. She achieved a career-high singles ranking of world No. 20 on 27 January 2025 and a doubles ranking of No. 76 on 17 March 2025. Puti ...

(lower back injury)

Doubles main-draw entrants

Seeds

*¹ Rankings are as of August 27, 2018Official Website

Other entrants

The following pairs received wildcards into the doubles main draw: *

Miharu Imanishi is a former tennis player from Japan. On 28 May 2018, she reached her highest WTA singles ranking of 187. On 9 September 2019, she peaked at No. 251 in the doubles rankings. In her career, she won six singles and six doubles titles on the IT ...

Alicja Rosolska Alicja Rosolska (; born 1 December 1985) is a Polish professional tennis player. On 9 June 2003, she reached her best singles ranking of world No. 636. On 10 June 2019, she peaked at No. 23 in the WTA rankings, doubles rankings. Rosolska has w ...

Hiroko Kuwata Hiroko Kuwata (; born 18 December 1990) is a Japanese tennis player. Kuwata has won seven singles titles and 20 doubles titles on the ITF Women's Circuit. On 9 May 2016, she reached her best singles ranking of world No. 150. On 13 July 2015, she ...

Chihiro Muramatsu is a Japanese tennis player. On 24 February 2020, she achieved a career-high singles ranking of world No. 205. On 2 April 2018, she peaked at No. 303 in the WTA doubles rankings. Muramatsu has won one singles title and three doubles titles on ...

Withdrawals

;During the tournament *

(gastrointestinal illness)

Champions

Singles

Hsieh Su-wei Hsieh Su-wei (; ; born 4 January 1986) is a Taiwanese professional tennis player. A former List of WTA number 1 ranked doubles tennis players, world No. 1 in Doubles tennis, doubles with nine Grand Slam (tennis), Grand Slam titles, she is rega ...

def.

6–2, 6–2

Doubles

Eri Hozumi is a Japanese tennis player. On 10 November 2014, she reached a career-high singles ranking of world No. 144. On 27 May 2019, she peaked at No. 28 in the WTA doubles rankings. Partnering with Makoto Ninomiya, she reached the final of the 2018 ...

Zhang Shuai Zhang Shuai ( zh , s = 张帅 , p = Zhāng Shuài ; ; born 21 January 1989) is a Chinese professional tennis player. She has a career-high doubles WTA rankings, ranking of world No. 2, achieved in July 2022 and a singles ranking of No. 22 re ...

def. Miyu Kato /

Makoto Ninomiya is a Japanese professional tennis player. She achieved a career-high doubles ranking of world No. 20 on 22 October 2018, and peaked at No. 280 in singles on 22 February 2016. Partnered with Eri Hozumi, she reached the final of the 2018 French ...

6–2, 6–4

References

External links

* {{2018 WTA Tour

Japan Women's Open