| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Theodore C. "Theo"•Koppen |
| Used name | Theo•Koppen |
| Born | 25 April 1870 in St. Louis, Missouri (USA) |
| Died | 3 March 1953 in St. Louis, Missouri (USA) |
| Affiliations | South Side Turnverein, St. Louis (USA) |
| NOC | United States |
Theo Koppen competed in featherweight freestyle wrestling at the 1904 St. Louis Olympics. A St. Louis native, Koppen represented the South Side Turnverein of St. Louis. Koppen worked as a moulder in an iron foundry, and later in life, was a clerk for a stove manufacturer.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1904 Summer Olympics | Wrestling | USA |
Theo Koppen | |||
| Featherweight, Freestyle, Men (Olympic) | AC r1/4 |