Sarah Paulsen joined Viborg HK from her childhood club ØHK Hedensted and became a part their academy. Here she debuted for the first team in a match against
SønderjyskE Håndbold at the age of 16 in 2014. She scored 7 goals in the match. The following years she only saw sporadic playing time, until she extended her contract in 2016 and became a part of the starting line-up. In 2018 she replaced
Sonja Frey in Cercle Dijon Bourgogne. In February 2021 she signed a two year deal with
SønderjyskE Damehåndbold after three years abroad. In the 2023-24 season she scored the second most goals in the Danish league with 179 goals, only beaten by
Line Gyldenløves 191 goals. She debuted for the Danish national team in November 2024 in a match against Romania. At the
2025 World Championship she played at her first major international tournament. Denmark went out in the quarterfinal to France after winning all matches in the group stages. The Danish team was affected by a lot of players missing the tournament including goalkeepers
Sandra Toft and
Althea Reinhardt and pivots
Sarah Iversen and
Rikke Iversen. This was the first time since 2019 that Denmark left a major international tournament without any medals. She acted mainly as a back-up during the tournament. In March 2026 she was sold to Polish club
MKS Lublin. ==References==