No amateur results
Professional record| | | 1980 | | Date | Opponent | Place | Result | | + Nov. 17 | Jung-Yul Suh | Seoul, South Korea | KO 3 | | + Nov. 19 | Jin-Hyung Park | Seoul, South Korea | KO 3 | | + Nov. 22 | Hee-Kwan Lee | Seoul, South Korea | W 4 | | + Nov. 23 | Ho-Chul Pyun | Seoul, South Korea | W 4 | | + Nov. 29 | Hi-Sup Shin | Seoul, South Korea | W 4 | | + Dec. 7 | Nam-Keun Kang | Seoul, South Korea | W 6 | | | | 1981 | | Date | Opponent | Place | Result | | + Jan. 11 | Jin-Hyung Park | Busan, South Korea | KO 2 | | + Jan. 23 | Chang-Pyo Hong | Busan, South Korea | W 8 | | + Mar. 29 | Yo-Dong Kim | Busan, South Korea | W 6 | | + Apr. 25 | Miguel Leal | Busan, South Korea | W 10 | | + June 7 | Oscar Bolivar | Daejeon, South Korea | W 10 | | + Sept. 4 | Lord Esmero | Busan, South Korea | W 10 | | + Oct. 11 | Leonardo Paredes | Daejeon, South Korea | KO 6 | | + Nov. 18 | Chutmongkol Thairungriang | Busan, South Korea | KO 2 | | + Dec. 26 | Alfonso Lopez
| Seoul, South Korea | KO 3 | | | | 1982 | | Date | Opponent | Place | Result | | + Feb. 10 | Jong-Kwan Chung | Daegu, South Korea | TKO 6 | | + Apr. 4 | Lukodd Phitiporn | Busan, South Korea | KO 5 | | + July 10 | Amado Ursua | Seoul, South Korea | W 10 | | - Sept. 18 | Hilario Zapata | Chongju, South Korea | L 15 | | WBC Light Flyweight Title | | + Dec. 5 | Rodrigo Saonoy | Chinju, South Korea | W 10 | | | | 1983 | | Date | Opponent | Place | Result | | + Feb. 6 | Tito Abella | Chungju, South Korea | KO 2 | | + Mar. 26 | Hilario Zapata | Daejeon, South Korea | TKO 3 | | WBC Light Flyweight Title | | + June 11 | Masaharu Inami | Daegu, South Korea | TKO 2 | | WBC Light Flyweight Title | | + Sept. 10 | German Torres | Daejeon, South Korea | W 12 | | WBC Light Flyweight Title | | | | 1984 | | Date | Opponent | Place | Result | | + Mar. 31 | Sot Chitalada | Busan, South Korea | W 12 | | WBC Light Flyweight Title | | + Aug. 18 | Katsuo Tokashiki | Pohang City, South Korea | TKO 9 | | WBC Light Flyweight Title | | + Dec. 15 | Tadashi Kuramochi | Busan, South Korea | W 12 | | WBC Light Flyweight Title | | | | 1985 | | Date | Opponent | Place | Result | | + Apr. 27 | German Torres | Ulsan, South Korea | W 12 | | WBC Light Flyweight Title | | + Aug. 4 | Francisco Montiel | Seoul, South Korea | W 12 | | WBC Light Flyweight Title | | + Nov. 10 | Jorge Cano | Daejeon, South Korea | W 12 | | WBC Light Flyweight Title | | | | 1986 | | Date | Opponent | Place | Result | | + Apr. 13 | German Torres | Gwangju City, South Korea | W 12 | | WBC Light Flyweight Title | | + Sept. 13 | Francisco Montiel | Daejeon, South Korea | W 12 | | WBC Light Flyweight Title | | + Dec. 14 | Hideyuki Ohashi | Incheon, South Korea | TKO 5 | | WBC Light Flyweight Title | | | | 1987 | | Date | Opponent | Place | Result | | + Apr. 19 | Efren Pinto | Incheon, South Korea | TKO 6 | | WBC Light Flyweight Title | | + June 28 | Agustin Garcia | Incheon, South Korea | TKO 10 | | WBC Light Flyweight Title | | + Dec. 13 | Isidro Perez | Daejeon, South Korea | W 12 | | WBC Light Flyweight Title | | | | 1988 | | Date | Opponent | Place | Result | | + June 27 | Hideyuki Ohashi | Tokyo, Japan | TKO 8 | | WBC Light Flyweight Title | | | | 1989 | | Date | Opponent | Place | Result | | + Aug. 27 | Armando Velasco | Busan, South Korea | W 10 | | - Dec. 9 | Humberto Gonzalez | Daegu, South Korea | L 12 | | WBC Light Flyweight Title | | | | 1990 | | Date | Opponent | Place | Result | | + Sept. 15 | Ric Siodora | Koomi, South Korea | TKO 8 | | - Nov. 24 | Sot Chitalada | Seoul, South Korea | L 12 | | WBC Flyweight Title | | | | 1991 | | Date | Opponent | Place | Result | | - May 18 | Muangchai Kittikasem | Seoul, South Korea | TKO by 12 | | WBC Flyweight Title |
Summary
Total bouts: 42, Won: 38 (17 inside the limit), Lost: 4 (1 inside the limit), Draw: 0, NC: 0, ND: 0
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