2008-09: Fredrik Pettersson-Wentzel played for Almtuna in the J18 junior league. In 25 games for the J18 club, Pettersson-Wentzel posted a 2.43 goals-against average and a .922 save percentage. He was passed over in the 2009 NHL Draft.
2009-10: Split time between the Allsvenskan and J20 leagues, where Pettersson-Wentzel continued to put up good numbers. In 37 regular season games, posted a 1.85 goals-against average and a .924 save percentage. In 10 playoff games, posted a 2.16 goal-against average and .914 save percentages. Almtuna will be back in the Allsvenskan again next year.
2010-11: Petterson-Wentzel made his Swedish Elitserien debut, on loan to Timra for 14 games where he posted a strong 2.71 GAA. After dominating the Allsvenskan the year prio and being named the best goalie in that division, the athletic young goalie continued to impress during his 16 games with Almtuna. Petterson-Wentzel was also chosen to represent his country at the World Junior Championships in Buffalo, NY where he played in three games, including the bronze medal match against the USA. Although Sweden were defeated in that game, fans and scouts in attendance were impressed by the technical skill and explosive quickness of the Thrashers fifth rounder.
Pettersson-Wentzel is a traditional butterfly goaltender whose strength is his agility. Overshadowed by some of the bigger name goalies in Sweden at the youth levels, he established himself as a prospect with a strong season in the Swedish second division. Still relatively raw in terms of development.
With no plans to come to North America, Petterson-Wentzel appears to no longer be a serious NHL prospect.