| Roles | Competed in Youth Olympic Games |
|---|---|
| Sex | Male |
| Full name | Kim•Yu-Seong |
| Used name | Kim•Yu-Seong |
| Name order | Oriental |
| Original name | 김•유성 |
| Born | 15 May 2007 |
| Measurements | 175 cm / 65 kg |
| NOC | Republic of Korea |
| Medals | YOG |
| Gold | 0 |
| Silver | 0 |
| Bronze | 0 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2024 Winter Youth Olympics | Short Track Speed Skating (Skating) | KOR |
Kim Yu-Seong | |||
| 500 metres, Boys (YOG) | 13 | |||||
| 1,000 metres, Boys (YOG) | 7 | |||||
| 1,500 metres, Boys (YOG) | 3 | Bronze | ||||
| 2,000 metres Relay, Mixed Youth (YOG) | Republic of Korea | 5 |