2009-10: Trevor Carrick appeared in three Tier 2 junior games with the Upper Canada Patriots and skated for the Markham Majors Midget AAA team. He had 1 assist and 2 penalty minutes in his brief stint with the Patriots. He had 29 points in 49 games with the Majors. Carrick was selected by Mississauga St. Michael's in the fifth round (85th overall) of the 2010 OHL Priority Draft.
2010-11: Carrick spent the season with the Stouffville Spirit in the Ontario Junior Hockey League. In 40 games he scored 6 goals with 13 assists and 44 penalty minutes. In the playoffs he was Stouffville's third-leading scorer with 2 goals and 11 assists in 19 games. The Spirit reached the OJHL semifinals before falling to eventual champ Wellington.
2011-12: Carrick skated in 68 games for Mississauga St. Michael's in his first OHL season. He scored 13 goals with 19 assists and was minus-five with 64 penalty minutes. After reaching the Memorial Cup in 2010-11, the Majors finished last in the Central Division and were eliminated by Barrie in a six-game first-round playoff series. Carrick scored 1 goal and was minus-one with 7 penalty minutes in the series. He was invited to the NHL Draft Combine and ranked 44th amongst North American skaters in Central Scouting's final rankings prior to the 2012 NHL Draft.
2012-13: Carrick returned to Mississauga for a second season, skating for the newly-christened Steelheads. After struggling in the first half of the season, he showed progress in the second half – particularly when paired with Toronto prospect Stuart Percy. In 56 games Carrick scored 10 goals with 21 assists and was -1 with 56 penalty minutes. Mississauga made the playoffs despite finishing fifth in the Central Division. Carrick had 2 assists and was -5 with 11 penalty minutes in the six-game series with Belleville.
A two-way defensemen with a knack for physicality, Carrick has some of the tools in place to become a standout player in the juniors. He is an extremely raw talent that is budding with potential.
Carrick will enter the 2013-14 season in the OHL.