Info
| Last name | Koriyama |
| First name | Masahito |
| Nationality |  Japan |
| Date of birth | 03-10-1978 |
| Age | 47 |
| Date | Rank | Race |
|---|---|---|
| 11-12 | 48 | Japan National Championships CX (CN) |
| 27-11 | 42 | Rapha Supercross Nobeyama - Day 2 (C2) |
| 30-10 | 30 | TOHOKU CX Project INAWASHIRO Round (C2) |