Gilbert Chapron was a top French amateur boxer, winning over 200 fights, punctuated by his bronze medal at the 1956 Melbourne Olympics. He turned professional, with his first pro bout in March 1957, and fought through May 1960, although he came back for two bouts in 1964. Chapron fought exclusively in France as a professional. In April 1960 he fought for the French light-heavyweight title, but lost to Paul Roux. Chapron finished his pro career with a record of 25 wins, 3 losses, and 2 draws. He then opened a bar in Orleans, before retiring to Cour-Cheverny.