| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Yu•Seong-Yeon | |
| Used name | Yu•Seong-Yeon | |
| Name order | Oriental | |
| Original name | 유•성연 | |
| Other names | Yoo Sung-Yeon | |
| Born | 19 April 1976 | |
| Measurements | 184 cm / 90 kg | |
| Affiliations | Korean Racing Association (KOR) | |
| NOC | Republic of Korea |  KOR |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2000 Summer Olympics | Judo | KOR |
Yu Seong-Yeon | |||
| Middleweight, Men (Olympic) | =17 |
