[1][2] He and his partner, Isabel Lohau won a bronze medal in mixed doubles at the 2022 BWF World Championships.

[3] Lamsfuß started playing badminton at aged 3, and in 2013 he won the Dutch Open Junior tournament in the mixed doubles event partnered with Franziska Volkmann.

[5] He became the Germany national badminton team in 2013, and at that year he reach the men's doubles semifinal round of the senior tournament at the Irish Open International Challenge with Fabian Holzer.

[1][6] In 2016, he clinched the mixed doubles title at the National Championships tournament partnered with Isabel Herttrich from BC Bischmisheim.

[9] In July, he competed at the 2020 Summer Olympics in the men's and mixed doubles but was eliminated in the group stage in both events.