Career, in brief
Boris Gregorka was a two-time Olympian for Yugoslavia in men's artistic gymnastics, competing from 1928 through 1936. He won one Olympic bronze.
Boris Gregorka competed for Yugoslavia in men's artistic gymnastics, 1928–1936. Career medals: 1 bronze.
Boris Gregorka was a two-time Olympian for Yugoslavia in men's artistic gymnastics, competing from 1928 through 1936. He won one Olympic bronze.
Career arc, year by year.