Sony helped the Indonesian team win gold in the men's team event. In 2008, Kuncoro competed in Beijing Olympic Games but he was eliminated in the quarterfinal to the second seeded Lee Chong Wei in straight games. In June, he won the Indonesia Open Superseries beating Simon Santoso in the final 19–21, 21–14, 21–9 in Istora Senayan, Jakarta. In September, Kuncoro won the Japan Open Superseries beating Lee Chong Wei from Malaysia in straight sets 21–17, 21–11 in the final. Also in September, he captured the China Masters Superseries by beating China's Chen Jin 21–19, 21–18 in the final, thus becoming the first player to win the men's singles at three consecutive "superseries" tournaments. In 2009, his best performance in Superseries was semifinalist in Indonesia Open, beaten by Taufik Hidayat, 17–21, 14–21 and in Denmark Open beaten by Marc Zwiebler of Germany in three tough games. In December, he again helped Indonesia win the Southeast Asian Games, beating Malaysia in the men teams final. He also finished second in the individual event, beaten by his teammate Simon Santoso. In 2012, he won the men's singles title at the Thailand Open Grand Prix Gold defeating China's Chen Yuekun in straight games, 21–17, 21–14. In the semi final, he beat the top seed from China, Lin Dan also in straight games, 21–17, 21–16. In 2013, he started the year by becoming the semifinalist in 2013 Korea Open Superseries Premier, beaten by Du Pengyu, 12–21 17–21 and in 2013 Indonesian Masters Grand Prix Gold, giving walkover to Dionysius Hayom Rumbaka. He became the finalist in 2013 Malaysia Open Superseries, beaten by Lee Chong Wei, 7–21 8–21 and in 2013 Hong Kong Open Superseries, again beaten by Lee Chong Wei, 13–21 9–21. In 2015, his best performance was being the champion at 2015 Chinese Taipei Masters Grand Prix after beating Wang Tzu-wei of Chinese Taipei with score 21–13, 21–15. He also won the 2015 Indonesia International Challenge after defeat the Korean young blood Jeon Hyeok-jin with straight games 22–20, 21–15. In 2016, he advanced to the main round of the 2016 Singapore Open Superseries after winning the qualification rounds. He later won the event after beating China's Lin Dan in the semi-final with score 21–10, 17–21, 22–20, then South Korea's Son Wan-ho in the final with 21–16, 13–21, 21–14. This is his first Superseries title win in six years. He last tasted success at