 In the gold medal game against Cuba, he pitched 8 innings, allowing two earned runs in a 3–2 victory.In March 2009, he represented the South Korea national baseball team in the 2009 World Baseball Classic, where the team was the runner-up to the eventual champion, Japan.In 2010, Ryu played in the 2010 Asian Games, where the South Korea national baseball team won the gold medal in baseball.