| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Jan•Olesiński | |
| Used name | Jan•Olesiński | |
| Born | 26 September 1956 in Katowice, Śląskie |  POL |
| Measurements | 186 cm / 72 kg | |
| Affiliations | Legia Warszawa — Warszawa (Warsaw), Mazowieckie | POL |
| NOC | Poland | POL |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1980 Summer Olympics | Modern Pentathlon | POL |
Jan Olesiński | |||
| Individual, Men (Olympic) | 11 | |||||
| Team, Men (Olympic) | Poland | 4 |
