Tags: Swimmer.
Maciej Hreniak (born May 3 1989 in Brodnica) is a Polish swimmer who specialized in long-distance freestyle events. He is a multiple-time Polish record holder and a three-time medalist for the 800 and 1500 m freestyle at the European Junior Swimming Championships (2006 in Palma de Mallorca Spain and 2007 in Antwerp Belgium). He also won two gold medals in the same category at the 2006 FINA Youth World Swimming Championships in Rio de Janeiro Brazil.