2011-12: Miguel Fidler played for the varsity team at Minnesota high school hockey power Edina as a sophomore. In 30 games he scored 6 goals with 12 assists and 42 penalty minutes. The Hornets advanced to the Minnesota State Tournament after capturing the Section 2AA championship with a 6-3 win over Burnsville in the final. Fidler scored 4 goals with 3 assists in three sectional playoff games. He was scoreless in the two state tournament games — a 3-2 loss to Benilde-St. Margaret’s and a 3-2 loss to Duluth East in the consolation tournament.
2012-13: Fidler skated for Metro Southwest in the Upper Midwest Elite High School League in the Fall before returning to Edina for his junior season. He scored 4 goals with 5 assists during the the UMEHSHL season. Fidler finished the high school season with 8 goals and 7 assists and had 32 penalty minutes in 29 games. Edina once again topped Burnsville (3-2) in the Section 2AA final and defeated Lakeville North and Duluth East in the state tournament before topping Hill-Murray, 4-2, in the championship game. Fidler scored 2 goals with 1 assist in the three sectional games and had a goal against Duluth East in the state tournament. Fidler was selected by the Lincoln Stars in the 15th round (221st overall) of the 2013 USHL Entry Draft.
2013-14: Fidler skated for Team Southwest in the UMEHSHL in the Fall and had a breakout senior season — leading Edina in scoring as the Hornets won their second straight Minnesota AA state championship. In 23 games for Team Southwest he scored 8 goals with 8 assists and 32 penalty minutes. Fidler scored 20 goals with 31 assists and 28 penalty minutes in 32 games for Edina. After defeating Bloomington Jefferson in the Section 2AA championship game the Hornets rolled through Stillwater, Eagan, and Lakeville North in the state tournament. Fidler scored goals in both sectional games and and had 2 goal with 1 assist in the state championship game against Lakeville North. In May he committed to playing college hockey at Ohio State in 2015-16. Fidler was ranked 133rd amongst North American skaters in the Central Scouting final rankings and was selected by Florida in the fifth round (143rd overall) of the 2014 NHL Draft.