2009-10: Selected by Seattle in the first round (12th overall) of the 2009 WHL Bantam Draft, Troock missed much of the season after suffering a head and neck injury in an October tournament. He appeared in nine games with the Thunderbirds and skated for the CAC Gregg Distributors midget AAA team in Alberta. Troock appeared in a pair of games in late December before joining the Thunderbirds at the end of the season and had 2 goals with 4 assists and was plus-two with 4 penalty minutes. Seattle missed the WHL playoffs after finishing last in the U.S. Division. Troock scored 19 goals with 18 assists and had 38 penalty minutes in 27 games for CAC. Troock had three points in two playoff games as fourth-place CAC was swept in a best-of-three series with Sherwood Park.
2010-11: Troock missed the entire season due to complications from his head and neck injuries.
2011-12: Troock returned to skate in 58 games for Seattle and represented Canada at the 2012 U18 World Junior Championship. He scored 14 goals with 12 assists on an offensively-challenged Thunderbirds team that finished last in the WHL's U.S. Division. Troock finished minus-16 with 83 penalty minutes. Playing for Canada's bronze medal squad at the U18 WJC, he had 1 assist and was minus-one with 10 penalty minutes. Troock was invited to the NHL Draft Combine and was ranked 65th amongst North American skaters in Central Scouting's final rankings prior to the 2012 NHL Draft.
A big, powerful winger that uses his edges well when skating. Very sharp on his skates with good agility and balance. He has a good shot that he can get upstairs with aplomb but needs to improve his slow release. He wants to have the puck at all times and will forgo the easy play or pass to challenge a defender one-on-one. Appears to be plagued with tunnel vision in offensive situations. He has nice hands and willingness to make life difficult for defensemen with his skill and his physicality. Lost valuable development time to head/neck injuries and is still lacking maturity in all facets of his game. He’s a project power forward that could turn out to be a terrific value where he was drafted or an AHL goal-scorer.
Expected to return to Seattle (WHL) in 2012-13.