Info
| Last name | Oka |
| First name | Masayuki |
| Nationality |  Japan |
| Date of birth | 07-12-1974 |
| Age | 51 |
| Date | Rank | Race |
|---|---|---|
| 29-11 | 66 | Rapha Nobeyama Supercross (C2) |
| 22-11 | 42 | KANSAI Cyclo Cross MAKINO Round (C2) |
| Last name | Oka |
| First name | Masayuki |
| Nationality | Japan |
| Date of birth | 07-12-1974 |
| Age | 51 |
| Date | Rank | Race |
|---|---|---|
| 29-11 | 66 | Rapha Nobeyama Supercross (C2) |
| 22-11 | 42 | KANSAI Cyclo Cross MAKINO Round (C2) |