in the world, won the China Open by beating reigning World champions Cai Yun and Fu Haifeng in the final in striaght games. Setiawan and Kido then claimed the 2006 World Cup, beating the Malaysian pairing of Lin Woon Fui and Fairuzizuan Tazari in the final. He competed in the 2006 Asian Games in Doha, Qatar, but lost in the semi-finals of both the men's doubles with Kido and in the men's team, settling for bronze medals in both events. 2007: World champion and world number 1 Beginning without winning any tournaments in early 2007, in August, Setiawan and Kido won the World Championships title in August, defeating Jung Jae-sung and Lee Yong-dae in the final, 21–19, 21–19 in striaght games. Prior to the World Championships, their best achievement in the first half of 2007 was being the runner-up at the China Masters. After the World Championships, they reached the semi-finals in the Japan Open and won the Chinese Taipei Open. These wins propelled Setiawan and Kido to world number 1 on the BWF World Rankings. Later in 2007, Setiawan and Kido managed to defend their title in the China and Hong Kong Opens. They also reached semi-finals in the Macau and Denmark Opens, but they were defeated by Malaysian pair Koo Kien Keat and Tan Boon Heong in both tournaments. Setiawan and Kido had never won a single match to Koo and Tan since their first meeting in January 2007 at the Malaysia Open, and the head-to-head record between the pairs stood at 0–4. Setiawan then made his third appearance at the Southeast Asian Games in Thailand, and helped Indonesia win the men's team gold. Setiawan then won his second men's doubles gold medal at the Games with Kido, defeating Hendri Saputra and Hendra Wijaya in the final. 2008: Olympic champion Setiawan and his partner, Markis Kido, opened the 2008 season by winning the Malaysia Open. Unfortunately, in the following tournaments, they were defeated in the early rounds, namely in the Korea and All England Opens. They then reached the final of the Swiss Open, but lost to Korean pair Jung Jae-sung and Lee Yong-dae in rubber games. Setiawan played at the Thomas Cup held in Jakarta, but he and Indonesia team lost 0–3 in the semi-finals match against South Korea. Later in August, Setiawan and Kido participated in the Beijing Olympics games, managing to make it to the