Yun Sang Koo boxer
- bouts
- 2
- won
- 0
- lost
- 2
- draw
- 0
- Status
- inactive
- Division
- -
- Debut
- 1988-04-17
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- South Korea
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1991-12-22 | Bong Kwan Park | WW | Munhwa Gymnasium, Seoul | LOST Technical knockout |
| 1988-04-17 | Yong-Bae Cho | WWW | Nonsan | LOST KO |