In 1910, Oszkár Demján broke the world record in both the 400- and 500-metre breaststrokes. He swam two breaststroke events at the 1912 Olympics, but failed to make either final. In the 200, he was eliminated in the semi-finals, and in the 400, was disqualified because, at the second turn, he touched the wall with only one hand. Demján joined the Nr. 32 Infantry Regiment in World War I, but was wounded in the early part of the hostilities. He survived those injuries but, whilst in action at Sianky, near Lviv, in the territory of what is the present day Ukraine, lost hs life.