2008-09: Aaron Harstad played 10 games for the USHL Green Bay Gamblers, going scoreless.
2009-10: In his second season with Green Bay, Harstad scored 2 goals and added 6 assists for 8 points in 47 games. In 11 playoff games for the Gamblers, Harstad picked up 3 assists as he and his teammates won the 2010 Clark Cup Championship.
2011-12: Harstad skated in 29 games for Colorado College as a freshman, usually on one of the top two defense pairings, and received the team’s Bob Johnson award as the top rookie. He had 6 assists and was plus-five with 27 penalty minutes. The Tigers finished fifth in the WCHA but were upset by Michigan Tech in the first round of the league tournament; finishing the year 18-16-2.
2012-13: Harstad played 31 games for Colorado College in his sophomore season – missing 11 games due to a shoulder injury. When healthy, he skated with junior Eamonn McDermott on the Tigers second defense pairing. Harstad scored 2 goals with 4 assists and was -4 with 10 penalty minutes. After finishing eighth in the WCHA, Colorado College came within one game of earning a berth in the NCAA tournament; defeating Denver, North Dakota and Minnesota before falling to Wisconsin in the Broadmoor Trophy (WCHA) championship game.
2013-14: Harstad was one of five players to skate in all 37 games for Colorado College in his junior season. One of two Winnipeg prospects in the Tigers defense corps along with Peter Stoykewych, he spent the bulk of the season skating on the second pairing with freshman Jaccob Slavin (CAR), the team’s leading scorer. Harstad scored 2 goals with 7 assists and was minus-12 with 37 penalty minutes. Colorado College finished seventh in the first season of the National Collegiate Hockey Conference and was swept by North Dakota in an NCHC quarterfinal series.
2014-15: Harstad made his pro hockey debut with Winnipeg AHL affiliate St. John’s following his senior season at Colorado College. He had no points nor penalties with the IceCaps. Harstad scored 5 goals with 4 assists and was -19 with 32 penalty minutes in 30 games for Colorado College. The Tigers finished last in the National Collegiate Hockey Conference and was swept by North Dakota in the NCHC quarterfinals.
A defensive defenseman. Good size, but work ethic is a question.
Harstad signed an AHL contract with Jets' affiliate Manitoba following his senior season at Colorado College along with fellow Tigers' defenseman Peter Stoykewych. Both attended Winnipeg's training camp before the 2015-16 season but were released and are currently skating for the AHL's Manitoba Moose.