He represented Hungary 59 times in international competition. He won 21 medals at the World Championships, seven of which were gold. This included six wins as a member of the Hungarian National Team that won the
Swaythling Cup in 1928, 1930, 1931, 1934, 1935, and 1938. Bellak moved to the United States at the start of World War II, and enlisted in the U.S. Army, serving in India and Burma. He was decorated three times, and was honorably discharged with the Victory Medal, attaining the rank of Sergeant. He won the U.S. Men’s Singles title in 1938, the U.S. Men’s Doubles in 1937, 1939, and 1943, and the U.S. Mixed Doubles in 1941. He also won three
English Open titles. ==Halls of Fame==