Learco Guerra's first " big year " was 1930. Though he finished the Giro d' Italia only ninth, but was Italian Champion in the road race and finished in the Tour de France and the World Championships each second. In 1931, Guerra World Champion and Italian master; In the same year he won jointly Alfredo Dinale rail competition Prix Dupré - Lapize in Paris. In 1932 he again won the Italian championship, and at the World Cup, he finished in the time trial number one, but was not at the Giro on the fourth square. In 1933 he won the national championship again and decided the classic Milan - Sanremo for themselves. At the Tour de France, he finished second behind Georges memory.
In 1934 he was again Italian Champion, won the Giro and the Tour of Lombardy, and was runner-up behind Karel Kaers. In 1935, he finished the Giro fourth place at Milan - San Remo and again in second place.
Guerra's nickname was " The Locomotive". He died from the effects of Parkinson 's disease.