[3] She came third in the 2012–13 FIS Cross-Country World Cup team sprint event in Liberec, Czech Republic, alongside Magdalena Pajala.

[5] She competed in the 2015–16 FIS Cross-Country World Cup 15 km event in Davos, Switzerland, as a late replacement for Maria Rydqvist.

[10] Sömskar, Jonna Sundling and Elina Rönnlund [de; sv] won the relay event at the Swedish Championships in 2018 and 2019.

[14] She came third in the Dresden team sprint event alongside Evelina Settlin [de; fr],[2] which was her second career World Cup podium.

At the 2021 Swedish Championships, Sömskar and Rebecca Öhrn [de] came seventh in the team sprint event.

[24] At the 2021 Roller Skiing World Championships in Val di Fiemme, she won the 10 kilometre freestyle[25] and the classic technique events.