Braaten made his international debut at the 1994 Junior World Championships in Breitenwang . There he won the gold medal in the team. From 1995 Braaten started in the Nordic Combined World Cup . On January 13, 1998 he was able to win his first and only World Cup race in Ramsau in the sprint . At the 1998 Winter Olympics in Nagano , he won the gold medal in a team competition with Bjarte Engen Vik , Fred Børre Lundberg and Halldor Skard . In the 1998/99 season Braaten reached several podium places and ended the season in sixth place in the overall World Cup standings. At the Nordic World Ski Championships in Ramsau in 1999 he won the silver medal in a team competition with Trond Einar Elden , Fred Børre Lundberg and Bjarte Engen Vik. He came seventh in the sprint and fifth in the Gundersen. From the 2000/01 season onwards, podium finishes were rare, but in the end, after good placements, he came 12th in the overall sprint world cup ranking. At the Nordic World Ski Championships in 2001 in Lahti , he won the gold medal together with Sverre Rotevatn , Kristian Hammer and Bjarte Engen Vik in a team competition. In the 2002/03 season he again reached 12th place in the overall sprint world cup standings. In 2003 he started in Val di Fiemme at the Nordic World Ski Championships and just missed the medal ranks there with the team with fourth place. After two years no more top placements, he ended his active career in 2005. Shortly before, however, he won gold in the sprint and silver in the individual at the Norwegian Championships in Lillehammer .