Info
| Last name | Hirai |
| First name | Kosuke |
| Nationality |  Japan |
| Date of birth | 02-10-2000 |
| Age | 25 |
| Date | Rank | Race |
|---|---|---|
| 15-12 | 31 | Utsunomiya Cyclo Cross Day2 (C2) |
| 14-12 | 25 | Utsunomiya Cyclo Cross Day1 (C2) |
| 23-11 | 67 | Rapha Supercross Nobeyama (C1) |
| 29-06 | 22 | National Road Championships - Japan U23 (CN) |
| 23-06 | 10 | National Road Championships - Japan TT U23 (CN) |