Kotaro Watanabe boxer
- bouts
- 8
- won
- 3
- lost
- 4
- draw
- 1
- Status
- inactive
- Division
- featherweight
- Debut
- 2005-06-23
- Height
- 5′ 7″/170cm
- Reach
- -
- Age
- -
- Born
- 1985-07-05
- Death
- -
- Nationality
- Japan
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2008-10-12 | Hiroyuki Hashimoto | DLWLWL | Korakuen Hall | LOST Split-decision |
| 2007-12-24 | Junichi Numata | LWW | Shinjuku FACE | LOST KO |
| 2007-08-01 | Satoru Furukawa | WDLWWW | Korakuen Hall | LOST KO |
| 2007-05-24 | Yuhei Taguchi | LWWWWL | Korakuen Hall | WIN Split-decision |
| 2007-04-03 | Zuri Kannan | WLW | Korakuen Hall | DRAW Points |
| 2006-05-09 | Kazuhiro Kitano | LWWW | Korakuen Hall | LOST Unanimous decision |
| 2005-12-19 | Tatsuya Adachi | DWLWDL | Diamond Hall, Okinawa | WIN Unanimous decision |
| 2005-06-23 | Takamasa Kurauchi | LLLWL | Korakuen Hall | WIN KO |