Sadao Usui boxer
- bouts
- 2
- won
- 0
- lost
- 2
- draw
- 0
- Status
- inactive
- Division
- bantamweight
- Debut
- 2002-07-03
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1977-12-18
- Death
- -
- Nationality
- Japan
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2005-09-18 | Ryuichi Kakuni | debut | Capio, Tsukuba | LOST Technical knockout |
| 2002-07-03 | Hironori Sawamura | debut | Korakuen Hall | LOST Technical knockout |