Education
At the 2012 Junior World Championships he finished eighth and ninth, followed by a bronze medal in super-G at the 2013 Junior World Championships.
At the 2012 Junior World Championships he finished eighth and ninth, followed by a bronze medal in super-G at the 2013 Junior World Championships.
He represents the sports club Stabæk IF. He is a younger brother of Lotte Smiseth Sejersted.