Japan Open

250OsakaJapanHardWTA

Japan Open (Osaka, Japan): played 10 times from 2009 to 2025 in this data. Most titles: Stosur S. (3).

Longest winning run here: Stosur S., 10 matches from 2013 to 2014.

Champions, year by year

Stosur S. 3

Most titles

				Where
2025	Fernandez L.A.	Valentova T.	Japan Open 250	Osaka, Hard	13 Oct 2025 – 19 Oct 2025
2024	Lamens S.	Birrell K.	Japan Open 250	Osaka, Hard	14 Oct 2024 – 20 Oct 2024
2023	Krueger A.	Zhu L.	Japan Open 250	Osaka, Hard	11 Sept 2023 – 17 Sept 2023
2019	Osaka N.	Pavlyuchenkova A.	Toray Pan Pacific Open Tennis Tournament Premier	Osaka, Hard	16 Sept 2019 – 22 Sept 2019
2014	Stosur S.	Diyas Z.	Japan Women's Open Tennis 250	Osaka, Hard	6 Oct 2014 – 12 Oct 2014
2013	Stosur S.	Bouchard E.	HP Open 250	Osaka, Hard	7 Oct 2013 – 13 Oct 2013
2012	Watson H.	Chang K.C.	HP Open 250	Osaka, Hard	8 Oct 2012 – 14 Oct 2012
2011	Bartoli M.	Stosur S.	HP Open 250	Osaka, Hard	10 Oct 2011 – 16 Oct 2011
2010	Tanasugarn T.	Date Krumm K.	HP Open 250	Osaka, Hard	11 Oct 2010 – 17 Oct 2010
2009	Stosur S.	Schiavone F.	HP Open 250	Osaka, Hard	12 Oct 2009 – 18 Oct 2009

Editions are grouped across sponsor names; "Played as" is the name that year. Tour-level main draws. Data: tennis-data.co.uk.