Kammala jumla mai zuwa: Duthie ya buga wasan hockey na Junior don Spokane Chiefs na WHL. Ya taka leda a Chiefs na tsawon shekaru 3, yana da maki 270 a wasanni 198. A lokacin kakar wasa ta karshe tare da Chiefs, an zabi Duthie a cikin kungiyar All-Star ta Western Conference. A lokacin da yake tare da Chiefs, an zabi Duthie sau biyu a cikin NHL Entry Draft; da farko a 1992 ta New York Islanders 105th gaba ɗaya, kuma a sake a
1994 ta Calgary Flames ta 91st gaba ɗaya.