Belfour was born in Carman, Manitoba and grew up playing hockey. He played junior hockey for the Winkler Flyers before going to the University of North Dakota where he helped the school win the NCAA championship in the 1986–87 season. The following year, Belfour signed as a free agent with the Chicago Blackhawks (after not being picked in the draft) alternating time between them and the Saginaw Hawks of the International Hockey League. Many regard Belfour as an elite goaltender and one of the best of all-time. His 484 wins rank 3rd all-time among NHL goaltenders.