2009-10: Kurtis MacDermid played minor midget hockey with the Grey-Bruce Highlanders in Central Ontario. MacDermid was selected by the Owen Sound Attack in the seventh round (139th overall) of the 2010 OHL Priority Draft.
2010-11: MacDermid skated for the Owen Sound Grays in the GOJHL. He was the leading scorer among defensemen for the Grays; finishing with 6 goals and 16 assists with 124 penalty minutes while playing all 51 games. The Grays finished last in the Midwestern Conference; winning just four games.
2011-12: MacDermid made his OHL debut; appearing in nine games due to a bout with mononucleosis, a season-ending injury in January and the presence of several veteran defensemen in the Owen Sound lineup. He had 2 assists and was an even plus/minus with 7 penalty minutes. He also returned to the Grays, skating in 20 games, and had 3 goals with 6 assists and 80 penalty minutes. The Greys missed the GOJHL playoffs; finishing last in the Midwestern Conference. MacDermid attended the Kings’ prospect camp in July after passing through the 2012 NHL Draft without being selected and signed a three-year entry-level contract with the Kings in September, 2012.
2012-13: MacDermid skated in 65 games for Owen Sound in his first full season in the OHL. He scored 1 goal with 7 assists and was +7; finishing second on the Attack with 110 penalty minutes. Owen Sound finished second to OHL champion London in the Midwest Division and reached the second round in the playoffs. MacDermid had 3 assists and was +3 with 11 penalty minutes in 12 playoff games.
2013-14: MacDermid attended his second training camp with the Kings before being returned to Owen Sound. He was acquired by Erie in exchange for OHL draft picks in January 2014 and finished the season with the Otters. In 66 regular season games between the two teams he scored 7 goals with 12 assists and was +22 (+21 with Erie) with 165 penalty minutes. Erie was one of the big turnaround stories in junior hockey; finishing second in the Midwest Division and reaching the OHL Western Conference finals. Mac Dermid had an even plus/minus with 3 assists and 29 penalty minutes in 12 playoff games.
MacDermid is the son of former NHL right wing Paul MacDermid and like his father relishes the physical aspects of the game and is a wiling combatant when the situation presents itself. He is a big, no nonsense, punishing defenseman. MacDermid likes to take the body and drop the gloves in defense of his teammates and to get the energy going. He has limited offensive upside — though he has shown some playmaking ability since joining the high-flying Otters. Overall, he relies primarily on his defensive play and physicality.
MacDermid attended training camp with the Kings before being returned to Erie at the beginning of the 2014-15 season. Now in his fourth OHL season, he is one of the few veterans on an Otters' team that features likely 2015 high draft picks Connor McDavid and Dylan Strome. Erie is one of the OHL's top scoring teams and as a result MacDermid has put up career highs in goals and assists. While his offensive numbers are interesting, MacDermid's calling card at the pro level will likely be his physical play and hard-edged style. He figures to need some time to adapt to the faster play and bigger players at that level but his toughness suggests he can one day have some value in a lower pairing, enforcer role.