2008-09: Calle Jarnkrok spent most of this season with Brynas' J20 squad. In 41 games for the SuperElit club, Jarnkrok scored 8 goals and picked up 18 assists for 26 points. He also picked up 37 penalty minutes in those games. In 7 playoff games for Brynas, Jarnkrok scored 4 goals and added 3 assists for 7 points. Jarnkrok was a part of Sweden's 2009 U-18 World Junior Championship team. He scored 2 goals and added 7 assists for 9 points in 6 tournament games.
2009-10: Split time between the Brynas J20 and Elitserian clubs. In 19 games at the J20 level, Jarnkrok scored 11 goals and added 20 assists for 31 points. He picked up 1 more assist in 2 playoff games for this squad. At the Elitserian level, Jarnkrok scored 4 goals and added 6 assists for 10 points in 33 games. In 5 playoff games, Jarnkrok picked up 1 goal and 1 assist for 2 points.
2010-11: Jarnkrok spent the entire season on Elitserien’s Brynas team, posting 11 goals and 16 assists for 27 points in 49 games. He also went on to score 3 goals in 3 post-season games before going down with a shoulder injury. Had an impressive campaign for Sweden at the WJC, where he posted 2 goals and 3 assists for 5 points over 6 games.
2011-12: Jarnkrok was the second-leading scorer for Brynas in Sweden's Elitserien as a 20-year-old and was played for Sweden in the 2012 IIHF World Championship. He scored 16 goals with 23 assists and was minus-three with 22 penalty minutes in 51 games; averaging almost 16 minutes of ice time per game. Brynas, after finishing fourth in the regular season, captured the Elitserien playoff championship. Jarnkrok scored 4 goals with 12 assists and was plus-12 with 12 penalty minutes in 16 playoff games. In eight games at the World Championships he had 1 assist and was an even plus/minus as Sweden finish sixth.
2012-13: Jarnkrok made his North American pro hockey debut in April following his fourth season with Brynas in Sweden's Eiltserien — skating in nine games with Detroit AHL affiliate Grand Rapids — before returning to Sweden to play in the 2013 IIHF World Championship. He had 3 assists and was + 3 with the Calder Cup champion Griffins but did not skate in the playoffs. Jarnkrok was Brynas' leading scorer with 13 goals and a team-high 29 assists in 53 games and was -2 with 12 penalty minutes. Brynas finished eighth, capturing the last playoff spot, being swept by champion Skelleftea in the first round. Jarnkrok was -3 with no points and 6 penalty minutes in the four-game series. In ten games for Sweden at the World Championship he had 1 assist and was -2 with 4 penalty minutes. Sweden defeated Switzerland, 5-1, to capture the gold medal.
Jarnkrok’s most obvious positive is his very good puck control, as he shows an ability to hang on for extended periods of time. He projects as a playmaker, as he is more apt to setting up plays than finishing them. Jarnkrok also boasts high-end skating ability and he possesses a great deal of hockey sense.
Where Jarnkrok plays in 2013-14 is likely up to how he performs at Detroit's training camp. The Red Wings already have an overabundance of NHL forwards, but Jarnkrok could still compete for a job. At the very least he will gain valuable AHL experience with the Grand Rapids Griffins.