Kammala jumla mai zuwa: Gasar farko ta Duggan ta International Ice Hockey Federation (IIHF) tare da manyan mata na Amurka shine
2007 IIHF Women's World Championship da aka gudanar a Manitoba, Kanada. Duggan ya yi rikodin taimako guda ɗaya ga Amurkawa a gasar, yayin da suka tafi gida da lambar azurfa. A gasar ta 2009, kungiyar Amurka ta kama lambar zinare ta biyu a jere ta hanyar kayar da Kanada a wasan karshe. Duggan ya zura kwallaye biyu a gasar, inda ya kammala na goma a tawagar Amurka a raga.