| No. |
Result |
Record |
Opponent |
Type |
Round, time |
Date |
Location |
Notes |
| 25 |
Win |
23–1–1 |
Rex Marzan |
TKO |
3 (10), 2:58 |
Apr 20, 2002 |
Saenghwal Gymnasium, Jinju, South Korea |
|
| 24 |
Win |
22–1–1 |
Kongsuk Kiatchaiyong |
KO |
5 (10), 1:59 |
Jan 30, 2001 |
Central City Millenium Hall, Seoul, South Korea |
|
| 23 |
Loss |
21–1–1 |
Joel Casamayor |
TKO |
5 (12), 2:18 |
May 21, 2000 |
Harrah's Casino, Kansas City, Missouri, U.S. |
Lost WBA super featherweight title |
| 22 |
Draw |
21–0–1 |
Choi Kyu-Chul |
PTS |
12 |
Jan 30, 2000 |
Pohang Indoor Gymnasium, Pohang, South Korea |
Retained WBA super featherweight title |
| 21 |
Win |
21–0 |
Lakva Sim |
SD |
12 |
Oct 31, 1999 |
Gudeok Gymnasium, Busan, South Korea |
Won WBA super featherweight title |
| 20 |
Win |
20–0 |
Esteban Lorenzo |
KO |
6 (10), 2:08 |
Jul 6, 1999 |
Gudeok Gymnasium, Busan, South Korea |
|
| 19 |
Win |
19–0 |
Nick Enero |
TKO |
9 (12), 0:40 |
Apr 10, 1998 |
Dankook University, Cheonan, South Korea |
Retained OPBF lightweight title |
| 18 |
Win |
18–0 |
Teofilo Tunacao |
KO |
10 (12), 0:18 |
Jul 18, 1997 |
Ansan Gymnasium, Ansan, South Korea |
Retained OPBF lightweight title |
| 17 |
Win |
17–0 |
Ali Albaracin |
KO |
1 (12), 2:43 |
Mar 13, 1997 |
Gwangmyeong, South Korea |
Won OPBF lightweight title |
| 16 |
Win |
16–0 |
Jun Mondonedo |
KO |
4 (10), 2:58 |
Nov 13, 1996 |
Pyeongtaek, South Korea |
|
| 15 |
Win |
15–0 |
Alfredo Baguio |
TKO |
4 (10), 2:01 |
Aug 26, 1996 |
Seoul, South Korea |
|
| 14 |
Win |
14–0 |
Nick Ampong |
KO |
2 (10), 2:37 |
May 2, 1996 |
Gwangmyeong, South Korea |
|
| 13 |
Win |
13–0 |
Boy Ligas |
PTS |
10 |
Nov 24, 1995 |
Ansan, South Korea |
|
| 12 |
Win |
12–0 |
Kim Jae-Kyung |
PTS |
10 |
Aug 23, 1995 |
Gwangmyeong, South Korea |
|
| 11 |
Win |
11–0 |
Lauro Wilton |
TKO |
8 (10), 0:24 |
Mar 31, 1995 |
Ansan, South Korea |
|
| 10 |
Win |
10–0 |
Al Coquilla |
TKO |
10 (10), 2:18 |
Feb 8, 1995 |
Seoul, South Korea |
|
| 9 |
Win |
9–0 |
Lee Gab-Yong |
UD |
10 |
Mar 26, 1994 |
Olympic Park Gymnasium, Seoul, South Korea |
Won South Korean lightweight title |
| 8 |
Win |
8–0 |
Kim Han-Jin |
KO |
2 (8), 2:36 |
Nov 21, 1993 |
Munhwa Gymnasium, Seoul |
|
| 7 |
Win |
7–0 |
Chung Heun-Guk |
KO |
2 (8), 2:20 |
Jul 31, 1993 |
Munhwa Gymnasium, Seoul, South Korea |
|
| 6 |
Win |
6–0 |
Lee Chang-Hoon |
KO |
1 (8), 2:20 |
Jul 3, 1993 |
Education Culture Center, Seoul, South Korea |
|
| 5 |
Win |
5–0 |
Lim Hyo-Young |
KO |
5 (6), 0:35 |
Jan 16, 1993 |
Seoul, South Korea |
|
| 4 |
Win |
4–0 |
Park Jong-Ho |
TKO |
2 (4), 3:08 |
Dec 19, 1992 |
Munhwa Gymnasium, Seoul, South Korea |
|
| 3 |
Win |
3–0 |
Kim Bon-Dol |
TKO |
2 (4), 1:35 |
Nov 21, 1992 |
Munhwa Gymnasium, Seoul, South Korea |
|
| 2 |
Win |
2–0 |
Kim Ui-Man |
KO |
2 (4), 2:33 |
Nov 20, 1992 |
Munhwa Gymnasium, Seoul, South Korea |
|
| 1 |
Win |
1–0 |
Choi Sung-Ho |
KO |
3 (4), 2:58 |
Sep 26, 1992 |
Pohang Gymnasium, Pohang, South Korea |
|