While riding the Tour de Romandie, he slammed into the door of a medical car.

[8] He was named in the start list for the 2015 Vuelta a España,[9] the 2017 Giro d'Italia,[10] and the 2018 Tour de France.

[11] After Hansen's contract was not renewed by Cofidis after the 2020 season, he initially considered retirement.

[12] However, Riwal Cycling Team, which was forced to step down from UCI ProTeam to UCI Continental level due to financial difficulties, signed Hansen to a one-year contract for the 2021 season, which the two parties had previously agreed upon once the team secured their financial standing.

[6][13] He retired following the season, ending his career with two professional victories.