2008-09: Victor Rask played for the Leksand club this season. In 26 games for the J-18 squad, he scored 9 goals and added 6 assists for 15 points. Rask also played for the U-16 squad, scoring 3 goals and adding 7 assists for 10 points. In international play for Sweden's U-16 team, Rask scored 2 goals and added 3 assists for 5 points in 11 games.
2009-10: Playing for Keksand's J-20 Super Elite squad, Rask scored 22 goals and added 19 assists for 41 points in 39 games. In 5 playoff games, he scored 3 goals and added 2 assists for 5 points. Playing for Leksand's J-18 squad, Rask scored 6 goals and added 3 assists for 9 points in 10 games. In 4 playoff games, he scored 4 goals and added 3 assists for 7 points. Rask played for Sweden at the 2010 World U-17 Hockey Challenge, scoring 1 goal and adding 7 assists for 8 points in 6 games. He also played for Sweden at the 2010 U-18 World Junior Championship, scoring 3 goals and adding 2 assists for 5 points in 6 games for the silver medalists.
2010-11: Playing for Leksand in the top minor league in Sweden, the Allsvenskan league, Rask scored 5 goals and added 6 assists for 11 points in 37 games. Rask also played 13 games in the J-20 SuperElite league, scoring 3 goals and adding 9 assists for 12 points. He also competed for the J-18 squad, scoring 4 goals and adding 4 assists for 8 points in 4 games. In 6 playoff games, he scored 3 goals and added 2 assists for 5 points. Rask played for Sweden at the 2011 U-18 World Junior Championship, scoring 2 goals and adding 3 assists for 5 points in 6 games for the silver medalists. He was named one of the top 3 players for Sweden in the tournament.
2011-12: Rask was impressive in his first season in North America; scoring at a nearly point-per-game pace for the WHL's Calgary Hitmen and winning a gold medal with Sweden in the 2012 U20 World Junior Championship. He scored 33 goals with 30 assists and was plus-seven with 21 penalty minutes in 64 games before suffering a late season leg injury that kept him out of the WHL playoffs. Fourteen of his 33 goals were scored on the Calgary power play. In six games at the WJC he had 1 assist and was minus-one with 6 penalty minutes. Sweden defeated Russia in the gold medal game.
2012-13: Rask opened the year with Carolina's AHL affiliate in Charlotte and played 10 games with the Checkers before being returned to the WHL's Calgary Hitmen for the rest of the year. The 19-year-old also skated for Sweden in the 2013 World Junior Championship. Rask scored 1 goal with 4 assists and was +7 with Charlotte. In 37 regular season games for Calgary he scored 14 goals with 27 assists and was +14 with 16 penalty minutes. Calgary finished second in the Central Division and lost to first place Edmonton in the Eastern Conference finals. Rask was the Hitmen's leading scorer in the playoffs; scoring 6 goals with 10 assists in 17 games and was +6 with 10 penalty minutes. He scored 2 goals with 2 assists in six games for Sweden at the WJC. Sweden won a silver medal; falling to the USA 3-2 in the championship game.
Rask appeared in 10 games for the Charlotte Checkers before returning to the Calgary Hitmen for the balance of the 2012-13 season.