Women's Tennis:
Japan Women's Open, Singles Champions by Year

Full list of singles winners, year by year, of the Japan Women's Open for women, including champions, runner-ups and finals results of each tournament edition.

The Japan Women's Open has crowned its women's singles champion in 13 editions, in which a total of 11 players have won at least one title. The first champion was Samantha Stosur in 2009 and the most recent was Suzan Lamens in 2024.

The last 8 editions of this tournament were won by 8 different players.

In the last 10 editions, 9 players have won the title: Samantha Stosur (2), Zarina Diyas, Nao Hibino, Ashlyn Krueger, Suzan Lamens, Christina McHale, Hsieh Su-wei, Heather Watson and Yanina Wickmayer.

Among the players that won titles, the most successful in the Japan Women's Open is Samantha Stosur with 3 trophies.

Surfaces:
= Hard
Categories:
250
= WTA 250
/
Intl
= WTA International

Women's Tennis: Japan Women's Open, Singles Champions by Year

Year
Champion
Runner-up
250
2024
Suzan Lamens
Kimberly Birrell
6-3, 6-3
250
2023
2022
not played
2021
Cancelled due to the COVID-19 pandemic
2020
Cancelled due to the COVID-19 pandemic
Intl
2019
Misaki Doi
6-3, 6-2
Year
Champion
Runner-up
Intl
2018
Hsieh Su-wei
6-2, 6-2
Intl
2017
Zarina Diyas
Miyu Kato
6-2, 7-5
Intl
2016
Christina McHale
3-6, 6-4, 6-4
Intl
2015
Intl
2014
Zarina Diyas
7-6(9-7), 6-3
Intl
2013
Year
Champion
Runner-up
Intl
2012
Chang Kai-chen
7-5, 5-7, 7-6(7-4)
Intl
2010
Tamarine Tanasugarn
Kimiko Date
7-5, 6-7(7-4), 6-1