Info
| Last name | Yamaguchi |
| First name | Hirohisa |
| Nationality |  Japan |
| Date | Rank | Race |
|---|---|---|
| 23-11 | 95 | Rapha Supercross Nobeyama (C1) |
| 03-11 | 90 | Yowamushi-Pedal Makuhari Cross (C2) |
| Last name | Yamaguchi |
| First name | Hirohisa |
| Nationality | Japan |
| Date | Rank | Race |
|---|---|---|
| 23-11 | 95 | Rapha Supercross Nobeyama (C1) |
| 03-11 | 90 | Yowamushi-Pedal Makuhari Cross (C2) |