Info
| Last name | Oka |
| First name | Masayuki |
| Nationality |  Japan |
| Date of birth | 07-12-1974 |
| Age | 51 |
| Date | Rank | Race |
|---|---|---|
| 26-11 | 102 | Rapha Supercross Nobeyama - Day 2 (C2) |
| 19-11 | 76 | 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 |
|---|---|---|
| 26-11 | 102 | Rapha Supercross Nobeyama - Day 2 (C2) |
| 19-11 | 76 | KANSAI Cyclo Cross Makino Round (C2) |