Kazuki Koyanagi vs Ryuya Yamanaka (0-0-0)
- Date
- 2012-06-22
- Result
- Winner: Ryuya Yamanaka
- Method
- UD
- Round
- 4 of 4
- Venue
- Central Gym
- City
- Kobe
- Country
- 🇯🇵 JP
- Confirmation
- ✓ one source
Sources
| Source | Side | Link | Observed |
|---|---|---|---|
| English Wikipedia | b | https://en.wikipedia.org/wiki/Ryuya_Yamanaka | 2026-10-11 |