World War II would interrupt his boxing career, he was drafted into the Italian army.

At the end of the war he joined AS Audace, a Roman sports club.

He competed for Italy in the 1948 Summer Olympics held in London, United Kingdom in the flyweight event where he finished in second place, losing to Pascual Pérez of Argentina.

Below are the results of Spartaco Bandinelli who competed for Italy as a flyweight boxer at the 1948 London Olympics:

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