Andalusien-Rundfahrt
Wellens' first victory in 2018 came at the Trofeo Serra de Tramuntana where he won the race for a second year in a row. At the Vuelta a Andalucía, Wellens won stage 4 and took the lead of the overall standings, by beating Mikel Landa on the cobbled climb of Alcalá de los Gazules.