She won the silver medal in the women's kumite 68 kg at the 2016 World Karate Championships in Linz, Austria.

[2][3] She is also a two-time bronze medalist in this event at the European Karate Championships.

At the 2017 World Games held in Wrocław, Poland, Pedersen competed in the women's kumite 68 kg event where she lost her bronze medal match against Kayo Someya of Japan.

[4][5] In 2019, Pedersen competed in the women's kumite 68 kg event at the European Games held in Minsk, Belarus.

In 2021, Pedersen competed at the World Olympic Qualification Tournament held in Paris, France hoping to qualify for the 2020 Summer Olympics in Tokyo, Japan.