柳延星
Men's Doubles results with Ko Sung-hyun against Super Series finalists, World Championships semifinalists, and Olympic quarterfinalists.
Cai Yun & Fu Haifeng 1–7
Chai Biao & Guo Zhendong 1-2
Guo Zhendong & Xu Chen 2–0
Fang Chieh-min & Lee Sheng-mu 3–1
Mathias Boe & Carsten Mogensen 0–6
Lars Påske & Jonas Rasmussen 1–1
Jonas Rasmussen & Mads Conrad-Petersen 1–0
Mohammad Ahsan & Bona Septano 5–1