Yoshihiro Koyama
| First Name : | Yoshihiro |
| Last name : | Koyama |
| Height : | 5'7" (173cm) |
| Weight : | 154 lbs (70 kg) |
| Birth Date : | 1981-07-21 |
| City : | Fukushima |
| Country : | Japan |
| Record : | 3 - 0 - 0 (Wins - Losses - Draws) |
| Wins : |
2 Decision (Unanimous) (66.67%) 1 TKO (Punches) (33.33%) |
| Association : | Paraestra Matsudo |
| Match Stats | ||||||
| Result | Opponent | Method | Event Title | Date | Round | Time |
| Win | Tetsuji Kato | TKO (Punches) | Shooto - Revolutionary Exchanges 3 | Nov 23, 2009 | 2 | 1:22 Sec |
| Win | Wataru Miki | Decision (Unanimous) | GCM - Cage Force 6 | Apr 5, 2008 | 3 | 5:00 Sec |
| Win | Yoshiki Noguchi | Decision (Unanimous) | Shooto 2006 - 7/21 in Korakuen Hall | Jul 21, 2006 | 2 | 5:00 Sec |