[1] The challenge round determined which nation would qualify to the last Americas Zone spot at the 2018 World Men's Curling Championship.

Brazil and Canada played a best-of-five series to determine the winner in the men's event.

However, the World Curling Federation allows for other member nations in the Americas Zone (i.e. Brazil) to challenge Canada and/or the United States for berths to the World Championships.

As hosts, the United States receive an automatic berth to the 2018 World Men's Championships.

Thus, Brazil is allowed to challenge Canada for a berth to the 2018 World Championships.