| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Kazunari•Watanabe |
| Used name | Kazunari•Watanabe |
| Original name | 渡辺•一成 |
| Born | 12 August 1983 in Futaba, Fukushima (JPN) |
| Measurements | 176 cm / 80 kg |
| Affiliations | Japan Professional Cycling Union |
| NOC | Japan |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2008 Summer Olympics | Cycling Track (Cycling) | JPN |
Kazunari Watanabe | |||
| Sprint, Men (Olympic) | 12 | |||||
| Team Sprint, Men (Olympic) | Japan | 6 | ||||
| 2012 Summer Olympics | Cycling Track (Cycling) | JPN |
Kazunari Watanabe | |||
| Keirin, Men (Olympic) | 11 | |||||
| Team Sprint, Men (Olympic) | Japan | 8 | ||||
| 2016 Summer Olympics | Cycling Track (Cycling) | JPN |
Kazunari Watanabe | |||
| Keirin, Men (Olympic) | =21 |