| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Mariusz•Podkościelny | 
| Used name | Mariusz•Podkościelny | 
| Born | 29 April 1968 in Gdańsk, Pomorskie (POL) | 
| Measurements | 193 cm / 75 kg | 
| Affiliations | AZS AWFiS Gdańsk, Gdańsk (POL) | 
| NOC |  Poland | 
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1988 Summer Olympics | Swimming (Aquatics) |  POL | Mariusz Podkościelny | |||
| 200 metres Freestyle, Men (Olympic) | 14 | |||||
| 400 metres Freestyle, Men (Olympic) | 5 | |||||
| 1,500 metres Freestyle, Men (Olympic) | 5 | |||||
| 1992 Summer Olympics | Swimming (Aquatics) |  POL | Mariusz Podkościelny | |||
| 400 metres Freestyle, Men (Olympic) | 15 | |||||
| 1,500 metres Freestyle, Men (Olympic) | 10 | |||||
| 4 × 200 metres Freestyle Relay, Men (Olympic) | Poland | 13 |