[3] Winther began his career with B 1903 in 2007 at the age of six and later joined Lyngby BK’s youth team in 2014.
[6] He made his professional debut on 20 March 2019, replacing Jesper Christjansen in a 2–0 win over Silkeborg in the second-tier Danish 1st Division.
[13] He made his debut for the club on 19 February, starting in a 5–2 home win over AC Horsens.
[15] On 29 January 2024, Augsburg announced that Winther would spend the remainder of the 2023–24 season on loan at Portuguese Primeira Liga club Estoril Praia.
[16] On 28 March 2024, Augsburg announced that Winther’s loan at Estoril had been prematurely terminated and he had been permanently transferred to Allsvenskan club Hammarby.