I te tau 2006, i toa ia i tana mētara koura tuatahi o te ao i te 18th World University Judo Championship i Suwon, South Korea. I wikitoria hoki a Jeong i tetahi mētara parahi i te waahanga -78 kg i te 2007 World Judo Championships
, he mētara hiriwa i roto i te momo taumaha ano i te 2007 Asian Judo Championships, me te mētara parahi i te 2008 Summer Olympics.