| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Kosuke•Tomonaga | |
| Used name | Kosuke•Tomonaga | |
| Original name | 朝長•孝介 | |
| Born | 22 July 1980 in Omura, Nagasaki |  JPN |
| Measurements | 184 cm / 83 kg | |
| Affiliations | Osaka Blazers Sakai — Sakai, Osaka | JPN |
| NOC | Japan | JPN |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2008 Summer Olympics | Volleyball (Volleyball) | JPN |
Kosuke Tomonaga | |||
| Volleyball, Men (Olympic) | Japan | =11 |
