All races
All races where Yamaga was either departure or arrival city, or a location on the route.
| # | Date | Race |
|---|---|---|
| 1 | 2010-10-10 | Kumamoto International Road Race |
| 2 | 2008-06-22 | Tour de Korea-Japan | Stage 1a |
| 3 | 2008-06-21 | Tour de Korea-Japan | Prologue |
| # | Date | Race |
|---|---|---|
| 1 | 2010-10-10 | Kumamoto International Road Race |
| 2 | 2008-06-22 | Tour de Korea-Japan | Stage 1a |
| 3 | 2008-06-21 | Tour de Korea-Japan | Prologue |