The 2025 Kinoshita Group Japan Open was a women's tennis tournament played on outdoor hard courts. It was the 14th edition of the Japan Women's Open, and part of the WTA 250 tournaments of the 2025 WTA Tour. It was held at the Utsubo Tennis Center in Osaka, Japan, from 13 to 19 October 2025.
Champions
Singles
Leylah Fernandez def. Tereza Valentová, 6–0, 5–7, 6–3
Doubles
Kristina Mladenovic / Taylor Townsend def. Storm Hunter / Desirae Krawczyk, 6–4, 2–6, [10–5]
Singles main-draw entrants
Seeds Country Player Rank1 Seed Naomi Osaka161Linda Nosková172Elise Mertens213Leylah Fernandez274Marie Bouzková415Olga Danilović426Ann Li467Jéssica Bouzas Maneiro478 Rankings are as of 6 October 2025
Other entrants The following players received wildcards into the singles main draw: Nao Hibino Ena Shibahara Wakana Sonobe Moyuka Uchijima
The following player received entry using a protected ranking: Bianca Andreescu
The following players received entry from the qualifying draw: Elisabetta Cocciaretto Dalma Gálfi Joanna Garland Varvara Gracheva Tereza Valentová Katie Volynets
Withdrawals Loïs Boisson → replaced by Sorana Cîrstea Iva Jovic → replaced by Bianca Andreescu Peyton Stearns → replaced by Suzan Lamens
Doubles main-draw entrants Seeds Country Player Country Player Rank1 SeedShuko AoyamaCristina Bucșa641Kristina MladenovicTaylor Townsend652Miyu KatoFanny Stollár743Giuliana OlmosAldila Sutjiadi934 1 Rankings are as of 6 October 2025
Other entrants The following teams received wildcards into the doubles main draw: Natsumi Kawaguchi / Sara Saito Hayu Kinoshita / Wakana Sonobe
References
External links