| Code | |
|---|---|
| Gender | Male |
| Used name | Im•Cheol-Seong |
| Other names | 임철성, Lim Cheol-Seong |
| Name order | Oriental |
| Born | 13 December 1972 |
| Sport | Competition | Host City | Country | Event | Placement | Country | |
|---|---|---|---|---|---|---|---|
| Swimming | 1989 Pan Pacific Swimming Championships | Tokyo | 400 m Freestyle, Men | 17 | |||
| Swimming | 1990 Asian Games | Beijing | 4 x 200 m Freestyle Relay, Men | 🥉 | |||
| Open Water Swimming | 2019 World Aquatics Championships | Gwangju | 10 km, Women | 53 |