| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Ryszard Antoni•Marczak |
| Used name | Ryszard•Marczak |
| Born | 25 November 1945 in Gdynia, Pomorskie (POL) |
| Measurements | 173 cm / 62 kg |
| Affiliations | Zawisza Bydgoszcz, Bydgoszcz (POL) |
| NOC |  Poland |
Personal Best: Mar – 2-11:35 (1981).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1980 Summer Olympics | Athletics | POL |
Ryszard Marczak | |||
| Marathon, Men (Olympic) |
