Info
| Last name | Koseki |
| First name | Hiroshi |
| Nationality |  Japan |
About Hiroshi Koseki
Hiroshi Koseki is a Japanese cycling professional, 0 years old.
Results
| Date | Rank | Race |
|---|---|---|
| 25-06 | DNF | National Road Championships - Japan (CN) |
| 23-06 | 28 | National Road Championships - Japan TT (CN) |