| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Hitoki•Iwase | |
| Used name | Hitoki•Iwase | |
| Nick/petnames | Gan-San / Mataro | |
| Original name | 岩瀬•仁紀 | |
| Born | 10 November 1974 in Nishio, Aichi |  JPN |
| Measurements | 180 cm / 74 kg | |
| Affiliations | Chunichi Dragons — Nagoya, Aichi | JPN |
| NOC | Japan | JPN |
| Medals | OG |
| Gold | 0 |
| Silver | 0 |
| Bronze | 1 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2004 Summer Olympics | Baseball (Baseball/Softball) | JPN |
Hitoki Iwase | |||
| Baseball, Men (Olympic) | Japan | 3 | Bronze | |||
| 2008 Summer Olympics | Baseball (Baseball/Softball) | JPN |
Hitoki Iwase | |||
| Baseball, Men (Olympic) | Japan | 4 |
