| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Jun•Nagai |
| Used name | Jun•Nagai |
| Original name | 永井•純 |
| Born | 20 May 1944 in ?, Okayama (JPN) |
| Measurements | 171 cm / 59 kg |
| NOC | Japan |
Personal Best: 800 – 1:48.0 (1968).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1968 Summer Olympics | Athletics | JPN |
Jun Nagai | |||
| 800 metres, Men (Olympic) | 5 h5 r1/3 |