In the middle of the Second World War, without prospects of a new season, Torino, whose name changed to Torino FIAT, only played friendly and small unofficial competitions. Mazzola, unlike many of his fellow players, who had returned to play with their home teams, stayed in Turin and, together with his other teammates, and began to train and participate in some games. In the unofficial 1944 Campionato Alta Italia, Torino FIAT finished second to La Spezia.