[7][11] In 1934, Hecht won the Butler Trophy of Monte Carlo alongside Roderich Menzel, defeating Jacques Brugnon and Jean Lesueur in the final.

[12] In singles, he was victorious at the Hungarian International Tennis Championships, upsetting Henner Henkel of Germany in the semifinal and Ignacy Tłoczyński of Poland in the final.

[17] Arriving home, he was defeated in the Czechoslovakian International Championship match by British player Fred Perry.

[20][21] Hecht was invited to play for the German Davis Cup Team in 1938 after Germany acquired part of Czechoslovakia by an aide to Adolf Hitler who was unaware that he was Jewish, but he declined.

[7][2][22] He fled to the United States three days before the Nazi Germany invaded the Czech Lands in 1939, and became an American citizen.

[28] In 1947, he won the Brooklyn Tennis Tournament at 38 years of age by beating Peruvian Enrique Buse in the final in straight sets.

[29][8][30][31] Hecht added the Eastern Clay Court Championships to his accolades the same year by defeating American Dick Savitt in the final in Jackson Heights, Queens.