| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Nils•Berthelsen |
| Used name | Nils•Berthelsen |
| Other names | Niels Bertelsen |
| Born | 29 September 1879 in Tromøy, Arendal, Agder (NOR) |
| Died | 5 October 1958 (aged 79 years 6 days) in Vang, Hamar, Innlandet (NOR) |
| Affiliations | KNS, Oslo (NOR) |
| NOC | Norway |
| Medals | OG |
| Gold | 1 |
| Silver | 0 |
| Bronze | 0 |
| Total | 1 |
Nils Berthelsen had a ship’s equipment and supply business in Oslo. In 1908 he married Clara Antonie Berthelsen Skullerud. As the couple had no children of their own, they adopted his wife’s nephew Erik Johan. During the period of economic instability in the 1920s, Berthelsen bought the Børstad farm near Hamar which was inherited by his son.
In 1912, he was a member of the crew of Alfred Larsen’s Magda IX, winning gold at the Stockholm Olympics coming from behind, however, in both races.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1912 Summer Olympics | Sailing | NOR |
Nils Berthelsen | |||
| 12 metres, Open (Olympic) | Magda IX | 1 | Gold |