Tuhia he haere tonu mo tenei pene - Ko Jun Jae-Youn, Jeon Jae-Yeon ranei (whanau i te 9 o Hui-tanguru 1983) he kaitakaro badminton o Korea ki te Tonga. I whanau mai ia i Pocheon, ko Jun tetahi waahanga o te Whare Wananga o Korea National Sport. Ko ia te toa i te 2004 Asian Championships i roto i te kaupapa takitahi wahine. I takaro ia i te whutupaoro i nga Taakaro Orimipia o te Raumati 2004 mo Korea ki te Tonga, i hinga i a Charmaine Reid o Kanata i te rauna tuatahi engari i hinga ia ki a Cheng Shao-chieh o Chinese Taipei i te rauna o te 16. I te 2005 Swiss Open, i pakaru ia i te whara o te kopu i te whara i te whiringa toa ki a Xu Huaiwen o Tiamana i te hauwhā o te whiringa toa. I whakataetae hoki a Jun i nga Taakaro Orimipia mo te wa tuarua i te 2008 Beijing
ka eke ki te rauna tuatoru. I whiua e ia a Kamila Augustyn me Chloe Magee i te rauna tuatahi me te rua, engari i hinga ia e Zhang Ning i nga keemu tika.