2008-09: Styrman split his time between the Elitserien and the J20 junior league. He posted just 1 assist at the Elite level, but scored 6 goals and added 12 assists for 18 points in 27 games for the junior squad. Played on Sweden’s second pairing at the Under-18 World Junior Championships, scoring 1 goal in 6 tournament games.
2009-10: Split time between Lulea’s J20 and Elitserien squads, playing mostly top league. In 14 games at the junior level, Styrman scored 1 goal and added 2 assists for 3 points. He also appeared in 4 playoff games for this team, scoring 1 goal and adding 2 assists for 3 points in those games. Styrman played in 39 games for the Elitserien team, picking up 3 assists in those games.
U18 coach Stephan Lundh praised Styrman's shot, saying it was one of the best on the team, even though he didn't play much on the power play.
Styrman is a mobile and strong-skating two-way defenseman. He has good puckhandling skills and likes to join the rush. Has fairly good offensive skills from the blueline ands reads the game well. Plays a decent enough defensive game can use some work on certain aspects.