Kazimierz Materski first played soccer before he took up hockey. In the top Polish soccer league, he had 76 assignments for clubs from Warsaw until 1934 scoring 12 goals. In hockey he represented Poland in 28 international matches (one goal) including the World Championships 1931 and 1933. In 1933 he was Polish Champion with the team of Legia Warszawa. Initially, Materski studied law and later became a career officer. In World War II, he was a member of the troops of General Władysław Anders, who remained in London as an exile politician protesting the Russian occupation of Eastern Poland. Materski did not return to Poland from war captivity before 1947.