Career
Chromik took eight national titles at long distances: 3000 m steeplechase (1952, 1954, 1956, 1960, 1961, 1962), 5000 m (1953), 10,000 m (1955). He participated in three European Championships in Athletics in Bern (1954), Stockholm (1958), Belgrade (1962). He also took place in the 1956 Summer Olympics in Melbourne (1956), and the 17th Olympic Games in Rome (1960).
Chromik set the 3000m steeplechase world records with 8:41.2 in Brno (August 1955), 8:40.2 in Budapest (September 1955), and 8:32.0 in Warsaw (August 1958).