Konrad Czerniak
Konrad Czerniak is a Polish competitive swimmer who has participated in the Olympics, FINA world championships, and European championships. He won ten medals at these championships, mostly in the butterfly.
At the 2012 Summer Olympics, he competed in the men's 100 m butterfly and the men's 100 m freestyle, reaching the final of the butterfly and the semifinals of the freestyle.
At the 2016 Summer Olympics, he competed in the men's 100 m butterfly, reaching the semifinals, and the men's 4 x 100 m medley and 4 x 100 m freestyle.
