Info
| Last name | Umakoshi |
| First name | Hiroyuki |
| Nationality |  Japan |
About Hiroyuki Umakoshi
Hiroyuki Umakoshi is a Japanese cycling professional, 0 years old.
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
| Tour de Hokkaido (2.2) | |||||||
| 08-09 | DNF | Stage 3Kitami - Tohma (182.0km) | |||||
| 07-09 | 73 | Stage 2Obihiro - Kitami (174.0km) | |||||
| 06-09 | 75 | Stage 1Asahikawa - Shintoku (185.0km) | |||||
| 29-06 | DNF | National Road Championships - Japan U23 (CN) | |||||