| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Jan•Ertmański |
| Used name | Jan•Ertmański |
| Born | 5 October 1902 in Poznań, Wielkopolskie (POL) |
| Died | 10 May 1968 in London, England (GBR) |
| Affiliations | Wielkopolskim Klubie Bokserskim |
| NOC | Poland |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1924 Summer Olympics | Boxing | POL |
Jan Ertmański | |||
| Welterweight, Men (Olympic) | =9 |