No amateur results
 
Professional record|   |  | 1991 |  | Date | Opponent | Place | Result |  | - Nov. 20 | Tae-Sun Park | Seoul, South Korea | L 4 |  |   |  | 1992 |  | Date | Opponent | Place | Result |  | + Jan. 18 | Jae-Yun Chang | Kumsan, South Korea | W 4 |  | + Mar. 24 | Ho-Nam Choi | Incheon, South Korea | W 4 |  | + July 7 | Kap Yong Lee | Incheon, South Korea | KO 5 |  | + Sept. 26 | Kap Yong Lee | Pohang City, South Korea | W 8 |  |   |  | 1993 |  | Date | Opponent | Place | Result |  | + Feb. 6 | Ronnie Belaro | Pasay City, Philippines  | W 10 |  | + July 25 |   Jess Maca | Gyeongju City, South Korea | W 10 |  |   |  | 1994 |  | Date | Opponent | Place | Result |  | + Mar. 26 | Han-Kil Cho | Seoul, South Korea | KO 8 |  | South Korean Bantamweight Title |  |   |  | 1995 |  | Date | Opponent | Place | Result |  | + Feb. 8 | Janjan Gigataras | Seoul, South Korea | TKO 1 |  | + Apr. 23 |   Jess Maca | Seoul, South Korea | W 12 |  | vacant OPBF Bantamweight Title |  | + Sept. 6 | Ric Ramirez | Gwangmyeong City, South Korea | KO 6 |  |   |  | 1996 |  | Date | Opponent | Place | Result |  | + Jan. 13 |   Alexander Pak | Incheon, South Korea | W 10 |  | + May 8 | Eddie Boy Penaso | Seoul, South Korea | KO 4 |  |   |  | 1997 |  | Date | Opponent | Place | Result |  | + Feb. 5 |   Colin Graham | Kwangyang, South Korea | KO 1 |  | + Aug. 21 |   Prawet Singwancha | Seongnam City, South Korea | KO 4 |  | + Nov. 7 | Vichit Chuwatana | Kuri, South Korea | W 10 |  |   |  | 1998 |  | Date | Opponent | Place | Result |  | + May 8 | Akarat Khotkaenan | Kuri, South Korea | KO 2 |  | + Aug. 29 | Joe Escriber | Seoul, South Korea | W 10 |  |   |  | 1999 |  | Date | Opponent | Place | Result |  | + Jan. 10 | Sammy Sordilla | Seoul, South Korea | TKO 3 |  | + Mar. 26 | Teofilo Tunacao | Cheonan, South Korea | KO 4 |  | + June 13 | Siengthip Sitsyasei | Seoul, South Korea | TKO 5 |  | + Oct. 20 | Roongsurin Lookongchan | Chungnam, South Korea | KO 5 |  |   |  | 2000 |  | Date | Opponent | Place | Result |  | + Jan. 2 | Andy Alagenio | Seoul, South Korea | KO 3 |  | + May 14 |   Baby Lorona Jr | Seoul, South Korea | W 10 |  | + Dec. 8 | Dino Olivetti | Seoul, South Korea | KO 9 |  |   |  | 2001 |  | Date | Opponent | Place | Result |  | - July 28 |   Erik Morales | Los Angeles, United States  | L 12 |  | WBC Featherweight Title |  |   |  | 2002 |  | Date | Opponent | Place | Result |  | + Mar. 30 |   Samuel Duran | Seoul, South Korea | TKO 3 |  |   |  | 2003 |  | Date | Opponent | Place | Result |  | + Feb. 28 |   Yang-Soo Sung | Dangjin, South Korea | W 10 |  | + July 2 | Thongcharoen Suwanasil | Incheon, South Korea | TKO 4 |  | = Oct. 18 |   Michael Brodie | Manchester, Great Britain | Draw 12 |  | vacant WBC Featherweight Title |  |   |  | 2004 |  | Date | Opponent | Place | Result |  | + Apr. 10 |   Michael Brodie | Manchester, Great Britain | KO 7 |  | vacant WBC Featherweight Title |  | + July 24 |   Eiichi Sugama | Seoul, South Korea | TKO 10 |  | WBC Featherweight Title |  |   |  | 2005 |  | Date | Opponent | Place | Result |  | + Jan. 30 |   Tommy Browne | Seoul, South Korea | W 12 |  | WBC Featherweight Title |  |   |  | 2006 |  | Date | Opponent | Place | Result |  | - Jan. 29 |   Takashi Koshimoto | Fukuoka, Japan  | L 12 |  | WBC Featherweight Title |  | + Dec. 17 |   Rodolfo Lopez | Seoul, South Korea | W 12 |  | WBC Featherweight Title |   
  
Summary
Total bouts: 35, Won: 31 (18 inside the limit), Lost: 3 (0 inside the limit), Draw: 1, NC: 0, ND: 0 
 
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