No amateur resultsProfessional record| Date | Opponent | Place | Result | | 1981 | | + May 8 | Kyu Sang Choi | Seoul, South Korea | W 4 | | - May 10 | Young Kil Choi | Seoul, South Korea | L 4 | | = June 7 | Yang-Il Shin | Daejeon, South Korea | Draw 4 | | = June 27 | Chang Sung Choi | Busan, South Korea | Draw 4 | | + Sept. 22 | Byong Hyun Choi | Seoul, South Korea | KO 1 | | 1982 | | + Feb. 14 | Kyung Woo Park | Daejeon, South Korea | W 4 | | + Apr. 17 | Kwang Soo Kim | Ryoisan, South Korea | KO 4 | | + May 8 | Kyung Woo Park | Seoul, South Korea | W 4 | | + June 26 | Kwan Sik Choi | Seoul, South Korea | W 6 | | = Sept. 18 | Mun Kyun Joo | Chongju, South Korea | Draw 8 | | + Oct. 31 | Yu-Ok Joo | Seoul, South Korea | W 8 | | 1983 | | + Feb. 5 | Young-Chul Hong | Daejeon, South Korea | W 8 | | + Mar. 12 | Jung Kuk Lee | Masan City, South Korea | W 8 | | + May 14 | Young Kil Choi | Seoul, South Korea | W 8 | | + June 26 | Hi-Young Chung | Seoul, South Korea | KO 4 | | South Korean Super Flyweight Title | | + Aug. 27 | Young Kil Choi | Daegu, South Korea | KO 9 | | South Korean Super Flyweight Title | | + Oct. 23 | Hoi-Yul Yang | Daegu, South Korea | W 10 | | South Korean Super Flyweight Title | | + Dec. 10 | Ken Kasugai | Osaka, Japan | TKO 5 | | vacant IBF Super Flyweight Title | | 1984 | | + Jan. 28 | Prayurasak Muangsurin | Seoul, South Korea | TKO 12 | | IBF Super Flyweight Title | | + Mar. 17 | Diego De Villa | Gwangju City, South Korea | KO 1 | | IBF Super Flyweight Title | | + May 26 | Felix Marquez | Wonju City, South Korea | TKO 6 | | IBF Super Flyweight Title | | + July 22 | William Develos | Busan, South Korea | KO 7 | | IBF Super Flyweight Title | | 1985 | | + Jan. 6 | Kwang-Koo Park | Ulsan, South Korea | KO 15 | | IBF Super Flyweight Title | | - May 3 | Elly Pical | Jakarta, Indonesia | TKO by 8 | | IBF Super Flyweight Title | | 1986 | | - Sept. 27 | Little Holmes | Jakarta, Indonesia | L 10 | 1987-1988 Inactive | | 1989 | | + Nov. 25 | Kyong-Mo Chung | Busan, South Korea | KO 3 | | - Dec. 30 | Hae Il Kim | Seoul, South Korea | KO by 7 |
Summary
Total bouts: 27, Won: 20 (11 inside the limit), Lost: 4 (2 inside the limit), Draw: 3, NC: 0
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