2009-10: Niklas Lundstrom made 17 regular season appearances for AIK J20, putting up a 2.94 GAA and a .906 save percentage for the club. He elevated his game for his 3 post-season contests, lowering his GAA to 2.22 and posting a sterling .926 save percentage. He also showed well in his one Allskaven appearance with the AIK parent club, registering a 1.79 GAA and a .941 save percentage.
2010-11: Lundstrom again spent the bulk of the season with AIK J20 with a 3.05 GAA and .891 save percentage. Made one forgettable appearance for AIK in the Elitserien (6.34 GAA and .783 save percentage) but played better in 2 games on loan to Lindlovens in the First Division where he managed a 2.35 GAA and a .925 save percentage. Lundstrom was chosen in the fifth round, 132nd overall, of the 2011 NHL Draft by the St. Louis Blues.
2011-12: Lundstrom was impressive in limited pro action and was one of the top goalies in Sweden’s SuperElit U20 league. He played in two games with AIK in the Swedish Elitserien and played in three games for second division (Allsvenskan) Oskarshamn. He allowed three goals in his two starts with AIK and had a .958 save percentage. He had a 2.27 goals against with a .905 save percentage playing for Oskarshamn. In 31 games for AIK’s U20 team he had 1 shutout and posted a 2.52 goals against and .923 save percentage. In the three game playoff series with Farjestads he was 1-2, stopping 42 of 43 shots in Game 1 for a 3-1 win. AIK lost the second game in a shootout and Lundstrom finished the playoffs with a 2.57 goals against and .915 save percentage.
2012-13: Lundstrom played 14 games in Sweden’s SHL with AIK and won a silver medal with Sweden’s U20 team at the 2013 World Junior Championship. He was 3-9 with a 3.10 goals against and .901 save percentage as a backup to veteran Daniel Larsson on the ninth-place club. Lundstrom appeared in four games at the WJC and was 2-1 with a 1.60 goals against and .944 save percentage. He stopped 31 of 33 shots in Sweden’s 3-1 loss to the USA in the gold medal game. Lundstrom played 11 games for AIK’s U20 team and had a 1.49 goals against and .946 save percentage. In three SuperElit playoff games he was 1-2 with a 2.37 goals against and .903 save percentage. Lundstrom signed a three-year entry-level contract with St. Louis in May, 2013.
2014-15: Lundstrom made his AHL debut — stopping all six shots he faced in 14 minutes of action in a February game with the Chicago Wolves in his only appearance — and played 36 games for the ECHL’s Alaska Aces in his first season in North America. He was 17-16-2 with a 3.05 goals against and .895 save percentage with the Aces. The defending Kelly Cup champions finished fifth in the Pacific Division, missing the ECHL playoffs.
Lundstrom has a solid butterfly technique, good lateral movement for a big man and a quick glove hand. The big netminder plays a little too deep and can have mental lapses after letting in weak goals.
Lundstrom attended training camp with the Blues before being assigned to the AHL's Chicago Wolves to start the 2015-16 season. With a glut of goaltenders in the St. Louis system he appeared in four games with the Wolves; spending time with the ECHL's Elmira Jackals. In one stretch from November to December he won eight of nine starts for the Jackals. Lundstrom was dealt by the St. Louis Blues along with a fifth-round pick to the Edmonton Oilers in exchange for Anders Nilsson in February 2015. As with any goalie, his long-range prospects are difficult to project but Lundstrom has the physical attributes and technical skills to be successful.