Bertrup began her international curling career as the alternate player for Elisabet Gustafson.

With Gustafson, she won a gold medal at the 2000 European Curling Championships, and placed 6th at the 2002 Winter Olympics.

She wouldn't return to the international curling scene until being picked up by Stina Viktorsson in 2010.

Bertrup played third for the team, and they won a gold medal at the 2010 European Curling Championships.

Viktorsson left the team in 2011, and was replaced at the fourth position by Maria Prytz.