Rubuta ci gaba don wannan sakin layi - Duke ya fara aikinsa na hockey na kankara tare da Lethbridge Hurricanes na Yammacin Hockey League bayan an zaba shi na biyar a cikin WHL Bantam Draft na 2011. An canza shi zuwa Brandon shekaru uku bayan haka, bayan an zaba shi a zagaye na shida na shigarwar NHL na 2014
ta kungiyar Minnesota Wild. A cikin 2016, ya lashe Gasar WHL, Kofin Ed Chynoweth, tare da Wheat Kings.