Kazuki Koyanagi boxer
- bouts
- 13
- won
- 3
- lost
- 10
- draw
- 0
- Status
- inactive
- Division
- super flyweight
- Debut
- 2010-04-10
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1984-12-09
- Death
- -
- Nationality
- Japan
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2015-11-01 | Genki Tashima | W | NTT Cred Hall, Hiroshima | LOST Split-decision |
| 2015-05-10 | Koichi Wakita | LW | Big Wave, Wakayama | LOST Unanimous decision |
| 2014-09-21 | Tenta Kiyose | LWD | Fukusaki Erde Hall, Kanzaki-gun | LOST Technical knockout |
| 2014-07-21 | Yukihiro Asahara | LLWLW | Budokan, Okayama City | WIN Unanimous decision |
| 2014-03-23 | Shota Nakashima | L | Shingu Fureai Welfare Hall, Tatsuno | LOST Unanimous decision |
| 2013-09-16 | Kohei Iwai | LD | Abeno Ward Center, Osaka | WIN Unanimous decision |
| 2012-06-22 | Ryuya Yamanaka | debut | Central Gym, Kobe | LOST Unanimous decision |
| 2011-11-13 | Astro Cheerioboy Maura | debut | Sumiyoshi Ward Center, Osaka | LOST Technical knockout |
| 2011-06-26 | Takaya Saki | L | Aeon Sakaide, Sakaide | LOST Majority decision |
| 2011-04-03 | Shigeki Oka | WW | City Sogo Gym, Takasago | LOST Unanimous decision |
| 2010-11-28 | Kazuya Matsumoto | LLLL | Industrial Hall, Gifu | LOST Technical knockout |
| 2010-08-21 | Yoshiaki Kawasaki | debut | Sumiyoshi Ward Center, Osaka | WIN Unanimous decision |
| 2010-04-10 | Kenta Sugimoto | L | Central Gym, Kobe | LOST Unanimous decision |