Career
Vinča started his sport career in 1925 with weightlifting, but Steponas Darius persuaded him to switch to boxing. In the 1928 Olympics he was eliminated in the second round of the light heavyweight class after losing his fight to Don McCorkindale. That was the best result for Lithuania, which was competing in the Olympics for the first time.
After the Olympics Vinča became a professional boxer.
He moved to the United States, where he was managed by the men who also managed Jack Sharkey. In 1931 he injured his wrist and returned to Lithuania.
In 1932 he attempted to restart his career in France, but the injury renewed. He them took up wrestling and competed in England and France.
When he retired, Vinča served with Lithuanian police in Klaipėda (1934–1938).
During World World War II he retreated to Germany and from there to the United States. Until 1954 he competed in American wrestling competitions.