He represented Austria in 3rd unofficial Chess Olympiad at Munich 1936, the first IFSB ("Internationaler Fernschachbund") Correspondence Chess Olympiad in 1937-1939 (won team silver medal), and the 10th Chess Olympiad at Helsinki 1952. He also played in two friendly matches: Austria vs. the Soviet Union in 1953, and Austria vs. Switzerland in 1955.