• Rask played for Sweden at the Under-17 World Hockey Challenge and the Under-18 World Championships in 2010. At the Under-18 World Championships in 2011, he finished with five points (2-3--5) in six games -- he won two World Championship silver medals (2010, 2011).

• In 2010-11, he played 13 games for Leksand’s junior team (3-9-12) and 37 games for Leksand’s senior team (5-6-11).