Jeong Yun-Seong
Biographical information
| Roles | Competed in Youth Olympic Games |
|---|---|
| Sex | Male |
| Full name | Jeong•Yun-Seong |
| Used name | Jeong•Yun-Seong |
| Name order | Oriental |
| Original name | 정•윤성 |
| Other names | Chung Yun-Seong |
| Born | 27 March 1998 |
| NOC |  Republic of Korea |
Results
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2014 Summer Youth Olympics | Tennis | KOR |
Jeong Yun-Seong | |||
| Singles, Boys (YOG) | =9 | |||||
| Doubles, Mixed Youth (YOG) | Kamonwan Buayam | =17 | ||||
| Doubles, Boys (YOG) | Lee Deok-Hui | =5 |