International competitions
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| Year | Competition | Venue | Position | Notes |
Representing South Korea |
| 1988 |
Olympic Games |
Seoul, South Korea |
16th (q) |
5.30 m |
| 1989 |
Universiade |
Duisburg, West Germany |
11th |
5.20 m |
| 1990 |
Asian Games |
Beijing, China |
3rd |
5.40 m |
| 1991 |
World Indoor Championships |
Seville, Spain |
– |
NM |
| Universiade |
Sheffield, United Kingdom |
6th |
5.40 m |
| World Championships |
Tokyo, Japan |
23rd (q) |
5.30 m |
| 1992 |
Olympic Games |
Barcelona, Spain |
– |
NM |
| 1993 |
Asian Championships |
Manila, Philippines |
3rd |
5.20 m |
| 1994 |
Asian Games |
Hiroshima, Japan |
3rd |
5.40 m |
| 1995 |
World Championships |
Gothenburg, Sweden |
21st (q) |
5.40 m |
| Asian Championships |
Jakarta, Indonesia |
2nd |
5.30 m |
| 1996 |
Olympic Games |
Atlanta, United States |
24th (q) |
5.40 m |
| 1997 |
East Asian Games |
Busan, South Korea |
2nd |
5.40 m |
| 1998 |
Asian Games |
Bangkok, Thailand |
2nd |
5.40 m |