TOKYO - China's Shi Yuqi claimed the men's singles title at badminton's Japan Open on Sunday, while Olympic champion An Se-young of South Korea secured the women's crown in a dominant display.

Facing defending champion Alex Lanier of France, Shi seized control when tied 17-17 in the first game, reeling off four straight points to claim it before clinching the second 21-15 for the victory.

An Se-young continued her remarkable season, overpowering China's Wang Zhiyi in just 42 minutes. The Olympic champion triumphed 21-12, 21-10, capturing her sixth title from seven BWF World Tour tournaments entered this year.

China emerged as the most successful team overall. Alongside Shi's gold and Wang's silver, they secured victories in two doubles events.

Liu Shengshu and Tan Ning successfully defended their women's doubles title, defeating Malaysia's Pearly Tan and Thinaah Muralitharan 21-15, 21-14. In the mixed doubles, Jiang Zhenbang and Wei Yaxin overcame Thailand's Dechapol Puavaranukroh and Supissara Paewsampran in a 62-minute thriller, winning 21-19, 16-21, 21-15.

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The men's doubles title went to South Korea's Kim Won-ho and Seo Seung-jae, who defeated Malaysia's Goh Sze Fei and Nur Izzuddin 21-16, 21-17.