2009-10: Peterson opened some eyes playing for Team Minnesota at the Beantown Classic in August and skated in 23 games as a sophomore at Duluth Marshall High School. He scored 15 goals with 14 assists and had 24 penalty minutes. Marshall finished fifth in the Lake Superior Conference and reached the Section 7A Finals – falling to Virginia/Mountain Iron-Buhl in overtime.
2010-11: Peterson played for Team North in the Upper Midwest Elite League prior to the high school season and was Duluth Marshall's leading scorer as a junior. In 24 games with Team North he scored 8 goals with 3 assists and had 22 penalty minutes. In 25 games for Marshall he scored 24 goals with 19 assists and was plus-21 with 40 penalty minutes. Once again, Marshall fell to V/MI-B in the Section 7A playoffs.
2011-12: Peterson was the fourth-leading scorer in Minnesota high school hockey during the regular season and led Duluth Marshall to the state tournament. He also competed for Team North in the Upper Midwest Elite League during the fall. In 16 Elite League game he had a pedestrian 4 goals with 2 assists. In 30 games for Duluth Marshall he scored 47 goals with 36 assists and was plus-29 with 32 penalty minutes. Marshall captured the Section 7A championship and advanced to the state tournament after finishing second behind Section 5A champ Hermantown in the Lake Superior Conference. Peterson committed to playing college hockey at St. Cloud State in 2013-14. He was drafted by Cedar Rapids in the second round (16th overall) of the USHL Entry Draft and will play for the RoughRiders in 2012-13. Peterson, though not among the 210 North American skaters in Central Scouting's final rankings, was selected by Buffalo in the seventh round (204th overall).
A highly touted sniper from the Minnesota high school system, Peterson is a natural center but will have to move to the wing at the NHL level due to his lack of size. He is still a very raw prospect and has not been tested at a high level yet.
Peterson will begin his NCAA career at St. Cloud State and down the road he is expected to fill an offensive role.