Indonesia's Tommy Sugiarto triumphed in his first Superseries final appearance, beating Thailand's Boonsak Ponsana 20-22, 21-5, 21-17 on Sunday at badminton's Li-Ning Singapore Open.
Despite enjoying support from the majority of the home crowd, defending champion Boonsak, ranked fourth in the world, made far too many errors in the 69-minute encounter.
"I enjoy playing in Singapore and the support from the crowd makes me fight harder. I will be back next year to try again," said the Thai, who was making a fifth final appearance since winning the men's singles title in 2007.
In the women's singles final, a repeat of the Olympic final from last year's London Games, Wang Yihan got the better of team-mate Li Xuerui.
Wang, the world No. 5, beat the world No. 1 Li 21-18, 21-12.
Li, who appeared sluggish throughout the match, said shortly after her loss: "I felt tired today and my opponent played better than me."
The mixed doubles title was won by Indonesia's Tontowi Ahmad and Liliyana Natsir, who beat South Koreans Yoo Yeon Seong and Eom Hye Won 21-12, 21-12.
Olympic women's doubles champions Tian Qing and Zhao Yunlei of China won their final against Misaki Matsutomo and Ayaka Takahashi, beating the Japanese 21-19, 21-16.
In the men's doubles, Indonesians Mohammad Ahsan and Hendra Setiawan made it back-to-back titles when they beat world No. 1 and top seeds Ko Sung Hyun and Lee Yong Dae 21-15, 21-18. The Indonesian pair had also taken the title at the Indonesian Open last week.