Dee ihe na-aga n'ihu maka paragraf a - Na 2017 Junior World Championships ọ nwetara ihe nrite ọla edo na ihe nrite ọla nchara na skiathlon, na-agbaso na ọla edo na ihe omume abụọ na 2018 Junior World Championships
Ọ dị mma. O mere asọmpi World Cup mbụ ya na Disemba 2018 na Beitostølen, ebe ọ chịkọtakwara akara mbụ ya na World Cup site na ebe nke iri atọ n'ọsọ kilomita iri atọ. Na 2020 Under-23 World Championships na Oberwiesenthal, Amundsen nwetara ihe nrite atọ; otu n'ime ha bụ ọla edo na ihe omume 30 km freestyle.