The 2009 BWF World Championships were held from August 10 to August 16, 2009, at the Gachibowli Indoor Stadium in Hyderabad, India. It was the 17th edition of the tournament. China dominated the championships, winning all five gold medals. The tournament was briefly overshadowed by security concerns following reported terror threats, but proceeded without incident.
The 2009 BWF World Championships officially commenced at the Gachibowli Indoor Stadium in Hyderabad, India, featuring over 300 players from approximately 40 countries competing across five disciplines.
Reports emerged of a terror threat linked to Lashkar-e-Taiba targeting the championships. The England badminton team briefly considered withdrawing from the tournament but decided to stay after receiving security assurances from the Indian government and local authorities.
Lu Lan of China defeated defending champion and compatriot Xie Xingfang 23-21, 21-17 in the women's singles final to win her first World Championship title, marking a generational shift in Chinese women's badminton.
Zheng Bo and Ma Jin of China defeated South Korea's Lee Yong-dae and Lee Hyo-jung 21-14, 21-15 in the mixed doubles final, completing China's historic sweep of all five gold medals at the 2009 World Championships.
China became the first nation to win all five gold medals at a single BWF World Championship, with Lin Dan, Lu Lan, Cai Yun/Fu Haifeng, Zhang Yawen/Zhao Tingting, and Zheng Bo/Ma Jin all topping their respective podiums, underscoring China's total dominance in world badminton.
Chinese pair Cai Yun and Fu Haifeng defeated South Korea's Jung Jae-sung and Lee Yong-dae 21-17, 21-16 in the men's doubles final, securing China's second gold medal of the championships.
Zhang Yawen and Zhao Tingting defeated compatriots Cheng Shu and Zhao Yunlei 21-17, 21-16 in an all-Chinese women's doubles final, continuing China's long-standing dominance in this discipline.
Lin Dan of China defeated his compatriot Chen Jin 21-18, 21-16 in the men's singles final to claim his third consecutive World Championship title, further cementing his status as the dominant player of his era.