| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Johan Reidar•Martiniuson | |
| Used name | Reidar•Martiniuson | |
| Born | 4 July 1893 in Nøtterøy, Vestfold |  NOR |
| Died | 4 June 1968 (aged 74 years 11 months) in New York, New York |  USA |
| Measurements | 170 cm / 66 kg | |
| Affiliations | KNS — Oslo, Oslo | NOR |
| NOC | Norway | NOR |
| Medals | OG |
| Gold | 1 |
| Silver | 0 |
| Bronze | 0 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1920 Summer Olympics | Sailing | NOR |
Reidar Martiniuson | |||
| 8 metres, Open (Olympic) | Sildra | 1 | Gold |
Earlier wrong information about this person, wrong DOB and DOD, wrong spelling of family name. New info from his niece, researched by Tron Espeli.
