At the Troyes stage, he was the only competitor to take to the air during the rest day, for the satisfaction of the public.
At Charleville-Mézières, he was the first to take off for the 4th stage, which a violent wind seemed to make impossible, and there he accomplished a "fantastic journey":[4] he landed five times along the way, including one for lunch with Julien Mamet (who unfortunately broke a wheel of his Blériot XI ), and Legagneux was only prevented from reaching Douai within the time limit due lack of fuel.
In the last stage, he took time to land along the way to invite himself to lunch, and took a short tour above Puteaux to greet his hometown.
[5] On 9 December 1910, he broke the altitude record set by Ralph Johnstone on 27 October 1910.
[6] Legagneux reclaimed the world altitude record in December 1913, when he reached 20,079 feet (6,120 metres) in a Nieuport.