Seven of the 18 UCI WorldTeams, six UCI ProTeams, and three UCI Continental teams made up the 18 teams that participated in the race.[2] 11 teams entered a full squad of seven riders each, and six teams entered six riders each, while Trek–Segafredo was the only team to enter five riders. There was one non-starter, which reduced Go Sport–Roubaix–Lille Métropole to six riders, so a total of 117 riders started the race.[3] Of these riders, 96 finished.[4]
On stage 2, Anthony Turgis, who was second in the points classification, wore the green jersey, because first-placed Caleb Ewan wore the yellow jersey as the leader of the general classification. On stage 3, Ewan wore the green jersey in place of Tim Wellens, who took over the lead in both classifications.