Amateur results| Date | Opponent | Place | Result | | 1986 | |
| Reno, Nevada, World Championships gold medal, 54 kg | + May 9 | Fabrizio Cappai | Reno, Nevada | WKO 1 | | + May 11 | Johnny Vasquez (USA) | Reno, Nevada | WPTS 5:0 | | + May 14 | Alexander Hristov (BUL) | Reno, Nevada | WRSCH 2 | | + May 16 | Arnaldo Mesa | Reno, Nevada | WPTS 3:2 | | + May 18 | Rene Breitbarth (GDR) | Reno, Nevada | WPTS 3:2 |
Professional record| Date | Opponent | Place | Result | | 1987 | | + Mar. 8 | Ric Bajelot | Seoul, South Korea | TKO 4 | | + May 17 | Singnoi Singkrungthon | Busan, South Korea | KO 3 | | + Aug. 16 | Constancio Dangla | Mokpo, South Korea | KO 3 | | + Dec. 11 | Tepratum Eakchatchingchai | Gwangju City, South Korea | TKO 2 | | 1988 | | + Feb. 21 | Tony Pruitt | Seoul, South Korea | KO 3 | | + June 5 | Oky Petrus | Ulsan, South Korea | TKO 4 | | + Aug. 14 | Khaokor Galaxy | Seoul, South Korea | TW 6 | | WBA Bantamweight Title | | + Nov. 27 | Edgar Monserrat | Seoul, South Korea | TKO 7 | | WBA Bantamweight Title | | 1989 | | + Feb. 19 | Chiaki Kobayashi | Daejeon, South Korea | TKO 5 | | WBA Bantamweight Title | | - July 9 | Khaokor Galaxy | Bangkok, Thailand | L 12 | | WBA Bantamweight Title | | + Nov. 19 | Romeo Opriasa | Kunsan, South Korea | KO 2 | | 1990 | | + Jan. 20 | Nana Yaw Konadu | Seoul, South Korea | TW 9 | | WBC Super Flyweight Title | | + June 9 | Gilberto Roman | Seoul, South Korea | TKO 8 | | WBC Super Flyweight Title | | + Oct. 20 | Kenji Matsumura | Seoul, South Korea | TW 5 | | WBC Super Flyweight Title | | 1991 | | + Mar. 16 | Nana Yaw Konadu | Zaragoza, Spain | TKO 4 | | WBC Super Flyweight Title | | + July 20 | Ernesto Ford | Seoul, South Korea | KO 5 | | WBC Super Flyweight Title | | + Dec. 22 | Torsak Pongsupa | Incheon, South Korea | TKO 6 | | WBC Super Flyweight Title | | 1992 | | + July 4 | Armando Salazar | Incheon, South Korea | TKO 8 | | WBC Super Flyweight Title | | + Oct. 31 | Greg Richardson | Seoul, South Korea | W 12 | | WBC Super Flyweight Title | | 1993 | | + Feb. 27 | Hilario Zapata | Seoul, South Korea | TKO 1 | | WBC Super Flyweight Title | | + July 3 | Carlos Salazar | Seoul, South Korea | W 12 | | WBC Super Flyweight Title | | - Nov. 13 | Jose Luis Bueno | Pohang City, South Korea | L 12 | | WBC Super Flyweight Title |
Summary
Total bouts: 22, Won: 20 (15 inside the limit), Lost: 2 (0 inside the limit), Draw: 0, NC: 0
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