| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Karl Rudolf Svend•Andersen | 
| Used name | Karl R.•Andersen | 
| Nick/petnames | Karl | 
| Born | 11 August 1899 in København (Copenhagen), Hovedstaden (DEN) | 
| Died | 7 July 1983 in København (Copenhagen), Hovedstaden (DEN) | 
| Affiliations | Gymnastikforeningen Athen, København (DEN) | 
| NOC |  Denmark | 
| Medals | OG | 
| Gold | 1 | 
| Silver | 0 | 
| Bronze | 0 | 
| Total | 1 | 
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1920 Summer Olympics | Artistic Gymnastics (Gymnastics) |  DEN | Karl R. Andersen | |||
| Team All-Around, Free System, Men (Olympic) | Denmark | 1 | Gold |