Alaphilippe won the third stage of the Tour de France on 8 July, simultaneously earning himself the yellow jersey. After losing the jersey on stage six to Giulio Ciccone, he regained it after the eighth stage, where he finished third. He then won stage 13, the individual time trial, in Pau by beating Geraint Thomas by 14 seconds. He kept the jersey until stage 19 after being dropped on the Col de l'Iseran. It was his most successful Tour to date finishing in 5th place overall, winning 2 stages, wearing the yellow jersey for 14 stages and while he was not named the most combative rider after any individual stages, he did stand on the podium in Paris as the most combative rider for the entire Tour.