| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Karel Jan•Hardeman |
| Used name | Karel•Hardeman |
| Born | 29 June 1914 in Surabaya, Jawa Timur (INA) |
| Died | 5 October 2010 in Den Haag (The Hague), Zuid-Holland (NED) |
| Affiliations | Njord, Leiden (NED) |
| NOC | Netherlands |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1936 Summer Olympics | Rowing | NED |
Karel Hardeman | |||
| Coxed Pairs, Men (Olympic) | Netherlands | 3 h1 r2/3 |