Top seed Zhou Mi of Hong Kong won 2009 Singapore Super Series after beating eight seed Chinese Xie Xingfang 21-19, 18-21, and 21-10. This victory makes Zhou women's singles world number one, replacing Danish Tine Rasmussen who did not play in Singapore due to injury. Zhou defeated her former compatriot Xie in 1 hour 1 minute.
In the men's singles, Boonsak Ponsana failed to repeat his 2007 success as the Thai fell to Bao Chunlai in rubber sets, 19-21, 21-16, and 15-21.
China grabbed two more titles from the women's doubles and the mixed doubles. Zhao Tingting/Zhang Yawen downed unseeded Indonesian pair, Greysia Polii and Nitya Krishinda. The fifth seeds won 21-14 and 21-13.
Fifth-seeded Zheng Bo and Ma Jin overcame teammates Xie Zhongbo and Zhang Yawen in a tough match, 19-21, 21-19, and 21-11. In the semi-final, Zheng/Ma had defeated world number two Lee Yong-dae and Lee Hyo-jung of Korea while Xie/Zhang had surpassed 2008 Olympic silver medalists, Nova Widhianto/Lilyana Natsir of Indonesia.
Indonesia did not get a title after the world number one pair Markis Kido and Hendra Setiawan was subdued easily by England's Nathan Robertson/Anthony Clark 12-21 and 11-21 in just 25 minutes.