Rubuta ci gaba don wannan sakin layi - A shekara ta 2006, ta lashe lambar zinare ta farko ta kasa da kasa a Gasar Judo ta Jami'o'in Duniya ta 18 a Suwon, Koriya ta Kudu. Jeong ya kuma lashe lambar tagulla a cikin nau'in -78 kg a gasar zakarun duniya ta Judo ta 2007
, lambar azurfa a cikin nau'in nauyi guda a Gasar Zakarun Asiya ta Judo ta 2007, da lambar tagulla a Wasannin Olympics na bazara na 2008.