KUMAMOTO, Japan, November 15, 2026 – Japan’s Akane Yamaguchi claimed her second Kumamoto Masters women’s singles title on Sunday, defeating China’s Wang Zhi Yi 21-14, 22-20 as the host nation celebrated two championships at the BWF World Tour Super 500 tournament.
The top-seeded Yamaguchi needed just 45 minutes to overcome second seed Wang, successfully reclaiming the title she previously won in 2024.
The victory marked Yamaguchi’s third consecutive win over Wang, moving her head-to-head record against the Chinese star to 11-10.
Akane Yamaguchi Captures Fourth World Tour Title of 2026
Yamaguchi established control in the opening game, winning 21-14 before facing a much closer challenge in the second.
Wang pushed the Japanese star into extra points, but Yamaguchi secured the decisive moments to close out the contest 22-20 and complete her straight-game victory.
The triumph gave Yamaguchi her fourth BWF World Tour title of 2026, following earlier successes at the Thailand Open, Australian Open and China Open.
Winning in Kumamoto carried particular significance for the 29-year-old, who trains in the Japanese city and was delighted to secure another championship in front of her home supporters.
Watch: Akane Yamaguchi vs Wang Zhi Yi – 2026 Kumamoto Masters Final Highlights
Video source: BWF.
Rin Iwanaga and Kie Nakanishi End Two-Year Title Drought
Japan’s women’s doubles pair Rin Iwanaga and Kie Nakanishi also enjoyed a memorable home triumph, defeating compatriots Ririna Hiramoto and Chiharu Shida 21-19, 21-15 in an all-Japanese final.
The world No. 5 pair and third seeds finally ended their title drought dating back to the 2024 Denmark Open.
Since that victory, Iwanaga and Nakanishi had suffered six consecutive defeats in tournament finals, including runner-up finishes at the Singapore, Hong Kong, Korea, Arctic and Kumamoto tournaments in 2025, followed by the Thailand Open in 2026.
Making their seventh final appearance during that stretch, the Japanese pair finally converted their opportunity into another championship.
The victory also marked their second consecutive win over Hiramoto and Shida, following their quarterfinal success at the French Open.
Watch: Iwanaga-Nakanishi vs Hiramoto-Shida – Final Highlights
Video source: BWF.
In mixed doubles, China’s top seeds Jiang Zhen Bang and Wei Ya Xin recovered from losing the opening game to defeat compatriots Gao Jia Xuan and Wu Meng Ying 15-21, 21-15, 21-14.
Japan finished the 2026 Kumamoto Masters with two titles, while Malaysia, India and China each secured one championship.
Complete Tournament Results
2026 Kumamoto Masters Japan – Finals, November 15
Men’s Singles
Lakshya Sen (India) defeated Koki Watanabe (Japan), 13-21, 21-18, 21-14.
Women’s Singles
Akane Yamaguchi (Japan) defeated Wang Zhi Yi (China), 21-14, 22-20.
Men’s Doubles
Aaron Tai / Yap Roy King (Malaysia) defeated Takuro Hoki / Yugo Kobayashi (Japan), 16-21, 21-13, 21-15.
Women’s Doubles
Rin Iwanaga / Kie Nakanishi (Japan) defeated Ririna Hiramoto / Chiharu Shida (Japan), 21-19, 21-15.
Mixed Doubles
Jiang Zhen Bang / Wei Ya Xin (China) defeated Gao Jia Xuan / Wu Meng Ying (China), 15-21, 21-15, 21-14.
