Duke ngamimitian karir hoki és junior-na jeung Lethbridge Hurricanes of the Western Hockey League sanggeus kapilih kalima dina WHL Bantam Draft 2011. Manéhna traded ka Brandon tilu taun saterusna, sanggeus dipilih dina babak kagenep tina 2014 NHL entry draft
ku Tim Liar Minnesota. Dina taun 2016, anjeunna meunangkeun Kejuaraan WHL, Piala Ed Chynoweth, sareng Wheat Kings.