| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Karl Frithjof•Olstad |
| Used name | Frithjof•Olstad |
| Born | 23 November 1890 in Tønsberg, Vestfold og Telemark (NOR) |
| Died | 16 December 1956 in Oslo, Oslo (NOR) |
| Affiliations | Ormsund Roklub, Oslo (NOR) |
| NOC | Norway |
| Medals | OG |
| Gold | 0 |
| Silver | 0 |
| Bronze | 1 |
| Total | 1 |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1912 Summer Olympics | Rowing | NOR |
Frithjof Olstad | |||
| Coxed Fours, Inriggers, Men (Olympic) | Ormsund Roklub | 3 | Bronze |