2010-11: Sebastian Aho played for the Bjorkloven club in the northern Sweden town of Umea and represented Vasterbotten in the 2011 TV-Pucken high school tournament. He scored 3 goals with 6 assists and was -13 with 16 penalty minutes in 27 games for the club’s U18 team and in three U16 games had 3 assists and 4 penalty minutes. Aho scored 1 goal with 3 assists and 6 penalty minutes in eight TV-Pucken tournament games as Vasterbotten captured a bronze medal.
2011-12: Aho went from Bjorkloven to Skelleftea and represented Sweden in international competion with the U16 team while again skating in the TV-Pucken tournament. He scored 4 goals with 14 assists and was +45 with 12 penalty minutes in 33 regular season games for Skelleftea’s U18 team. Skelleftea was the runner up in the Allsvenskan playoffs and in seven games Aho had 2 assists and was +2 with 2 penalty minutes. A team captain for Sweden’s U16 team he had 6 assists and was +7 with 4 penalty minutes in 11 games. Aho scored 3 goals with 8 assists and was +13 with 4 penalty minutes in eight TV-Pucken games as Vasterbotten captured a gold medal.
2012-13: Aho appeared in one Elitserien game with Skelleftea — spending most of the season with the club’s U20 team in the SuperElit league — and represented Sweden at the U18 and U17 levels. He had no points or penalty minutes in his only Elitserien game. In 42 SuperElit games (including four playoff games) he scored 1 goal with 11 assists and was +9 with 14 penalty minutes. Aho had an even plus/minus with no points and 4 penalty minutes in five games for Sweden at the 2013 U18 World Junior Championship. He had 4 assists and 14 penalty minutes in six games as an assistant captain for Sweden at the 2013 U17 World Hockey Challenge. Sweden defeated Russia, 7-5, in the gold medal game.
2013-14: Aho played for Sweden’s U18 team at the 2013 Ivan Hlinka Tournament in August before returning to Skelleftea. In his first 19 games with the club’s mens team in the re-christened SHL he scored 1 goal with 3 assists and had an even plus/minus with 2 penalty minutes. Aho scored 4 goals with 8 assists and was +8 with 6 penalty minutes in his first 13 games with the Skelleftea U20 team. He was +1 with no points nor penalties in two games at the Ivan Hlinka Tournament; missing the final two games and the beginning of the season with a finger injury. Aho was ranked ninth amongst International skaters in Central Scouting’s mid-term rankings prior to the 2014 NHL Draft.
Seldom does such a smooth-skating, intelligent defenseman who has already succeeded at Sweden’s highest pro level go undrafted by an NHL team, but Aho’s small and slender frame has some believing he may never be able to withstand the rigors of NHL play. It’s a different story in Sweden, where the clever defenseman has a knack for blocking passes and getting his stick in shot and pass pathways, then moving the puck soundly to his teammates. With a very agile manner of skating, his skills are very noticeable in moving at good speeds in all directions. He hustles, but is very methodical in making decisions and finds a way to be a continually effective player in his zone, where he’s spent most of the past two seasons trying to become more complete. Few players in the 2015 draft have displayed the pro experience Aho already has. He is considered amongst the top 3 or 4 overall talents for his age group by Swedish ice hockey experts.
Aho's high talent level makes him an intriguing prospect despite his small stature. While he will be challenged by the bigger and faster players at the NHL level his skill set suggests he could be an effective puck moving defenseman and power play quarterback in the future.