2008-09: Tobias Rieder played for EV Lanshut's U-18 squad. In 36 games, he scored 28 goals and added 24 assists for 52 points. In 9 playoff games, Rieder scored 6 goals and added 8 assists for 14 points. Rieder played for Germany at the 2009 World U-17 Hockey Challenge, picking up no points in 5 games. Rieder also played for Germany at the 2009 U-18 World Junior Championship, scoring 1 goal and adding 3 assists for 4 points in 6 games.
2009-10: Rieder played for the Landshut Cannibals in Germany's second tier league. In 45 games, he scored 10 goals and added 13 assists for 23 points. He registered no points in 6 playoff games. Rieder played for Germany at the 2010 U-20 World Junior Championship (D1), scoring 4 goals and adding 2 assists for 6 points in 5 games. Rieder also played for Germany at the 2010 U-18 World Junior Championship (D1), scoring 6 goals and adding 1 assist for 7 points in 5 games. Rieder was chosen in the first round, 5th overall, of the 2010 CHL Import Draft by the OHL's Kitchener Rangers.
2010-11: In his OHL rookie season, Rieder played in 65 games for the Rangers. He scored 23 goals and added 26 assists for 49 points. In 7 playoff games, Rieder picked up 2 assists. Rieder played for Germany at the 2011 U-20 World Junior Championship, scoring 1 goal and adding 1 assist for 2 points in 6 games. Rieder also played for Germany at the U-18 World Junior Championship, scoring 3 goals in 3 games.
2011-12: Rieder returned to the OHL after attending Edmonton's training camp and was the leading scorer for the Kitchener Rangers in his second season in North America. He was the leading scorer at the 2012 U20 Division 1A World Junior Championship as Germany won the tournament – winning all five games it played. Rieder scored 42 goals with 42 assists and was plus-22 with 25 penalty minutes in 60 games for Kitchener. The Rangers finished second in the Midwest Division and reached the OHL semifinals. Rieder led Kitchener in scoring during the playoffs with 13 goals and 14 assists in 16 games and was plus-six with 4 penalty minutes. Playing at the D1A WJC, he scored 5 goals with 8 assists and was plus-6 in five games as host team Germany easily won its way back into the top division for 2013.
Rieder combines above average skill with a high compete level and is an exciting player to watch as a result. He brings both offensive ability and a willingness to get his nose dirty to the table, and is a fan favorite as a result. He has a slight build and lacks ideal height however, and this leads to him being worn down from time to time.
Rieder will play his third season in the OHL with the Kitchener Rangers and will be hard pressed to better last season's offensive numbers. He will be expected to provide leadership, character and offense for his team. The German-born forward should represent his country at the 2013 WJC tournament in Ufa, Russia.
Rieder was dealt from the Edmonton Oilers in March of 2013 in exchange for Kale Kessy.