2006-07: Played for Waterloo of the USHL and was second on the team in goals (25), assists (29) and points (54) in 60 games, seeing time on both the powerplay and the penalty kill. Turnbull was named to the USHL All-Rookie Team. Drafted by the Kings with their second choice in the fifth round.
2007-08: Turnbull turned in a modest performance as a freshman with the University of Wisconsin. He played more of a physical grinder role on the fourth line with spot duty supporting the more skilled forwards on the second line. His 11 points in 37 games is a respectable total to increase on as he gains more experience in the college game.
2008-09: Hampered by the sophomore jinx, Turnbull took a significant step backwards in his development. Turnbull cut his point production down to six points as he rarely found himself in the lineup and saw even less ice time.
2009-10: In his third season with U of W Turnbull posted 2 goals in 12 games.
Turnbull is a high-energy forward with average but developing offensive skills. He is attentive to the defensive side of the rink and has found playing time as a result.
Turnbull will return to Wisconsin for his senior year. At this point he has to prove durable enough to earn a contract from them.