His first large success was in 1940, winning the Giro d'Italia at the age of 20. In 1942 he set a world hour record (45.798 km at the Velodromo Vigorelli in Milan) which stood for 14 years until it was broken by Jacques Anquetil in 1956. His career was then interrupted by the Second World War. In 1946 he resumed racing and achieved remarkable successes which would be exceeded only by Eddy Merckx. The veteran writer Pierre Chany said that from 1946 to 1954 Coppi was never once recaught once he had broken away from the rest.