| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Roelof Jan "Roeffie"•Vermeulen |
| Used name | Roeffie•Vermeulen |
| Born | 26 February 1906 in Leeuwarden, Friesland (NED) |
| Died | 28 June 1963 (aged 57 years 4 months 2 days) in Leeuwarden, Friesland (NED) |
| NOC |  Netherlands |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1928 Summer Olympics | Sailing | NED |
Roeffie Vermeulen | |||
| 6 metres, Open (Olympic) | Kemphaan | 4 |
