 He progressed through the club's academy to the under-13 team before making the move to the Lyngby BK youth team in 2014.Winther progressed through the Lyngby academy while playing matches for his primary school, in the Ekstra Bladet School Football Tournament in 2016.He signed a five-year professional contract on 27 May 2019, after making his first appearances for the Lyngby first-team during the 2018–19 season in the Danish 1st Division, where Lyngby secured promotion.