[3] In 2010, he moved to Scania when he was accepted to the golf riksidrottsgymnasium program in Klippan/Ljungbyhed, where he became classmates with Elin Arvidsson and Lynn Carlsson, and coached by Hans Larsson.

Between 2016 and 2018 he won four titles, one each in Sweden, Denmark, Norway and Germany.

[5] Längfors secured his European Tour card for 2019 at Q-School.

[6] His best finish in his rookie season came at ISPS Handa World Super 6 Perth, where he shot an eight-under-par 64 and was the top seed heading into the final match-play round, ultimately finishing 9th.

[7][8] In 2024, he joined the Challenge Tour, where he was runner-up at the Blot Open de Bretagne.