Yoo Yong-sung

Yoo Yong-sung (born 25 October 1974) is a retired badminton player from South Korea. He is two time Olympic silver medalist.

Olympic Games
Men's doubles

World Championships
Men's doubles

World Cup
Men's doubles

Asian Games
Men's doubles

Mixed doubles

Asian Championships
Men's doubles

Mixed doubles

Asian Cup
Men's doubles

Mixed doubles

East Asian Games
Men's doubles

Mixed doubles

IBF World Grand Prix
The World Badminton Grand Prix sanctioned by International Badminton Federation (IBF) since 1983.

Men's doubles

Mixed doubles

IBF International
Men's doubles