His position is second baseman. He is a member of the national team. He has fast legs and a great catching ability. His nickname is Koget. He is a second fielder. "Koget" is a compound word made up of his family name and an animation gadget. His experiences as a member of the national team are in the Beijing Olympic Games and the second WBC. He won the golden glove prize in 2007. He also won the Korea professional baseball at second baseman prize. He got the best point prize in 2007 for the Samsung PAVV professional baseball team.