The third stage, to Naples, was . Before the start, three riders were disqualified and subsequently removed from the race for taking a train during the second stage. They were caught after failing to pass through an unexpected checkpoint set up by the organizers. The start of the third stage was moved downhill after the opening descent was found to be too dangerous for the participants' brakes. The stage featured three major climbs. After the mountains Giovanni Rossignoli pursued the leader, Carlo Galetti, eventually catching him and going on to win the stage, while Galetti took the race lead away from Ganna. On the fourth stage, from Naples to the Italian capital Rome, French rider Louis Trousselier was doing well until he ran over tacks strewn on the road by spectators, and the other riders left him behind. Galetti and Ganna formed a group at the front and Ganna went on to win the stage in front of thousands of spectators, retaking the race lead by a single point.
