|Competitor for Poland|
|2004 Athens||800 metres - T37|
Mariusz competed in the 2000 Summer Paralympics in the 800m, 1500m and 5000m but it wasn't until the 2004 Summer Paralympics that he tasted medal success after winning bronze in the 800m and competing in the 1500m. He also competed in the 2008 Summer Paralympics in the 800m but could not match the bronze medal he won 2004 finishing in seventh place.
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