[1] This was the first time the Americas Challenge had three teams competing, with Guyana making their first appearance.

[3] The United States went undefeated to qualify for the World Men's Curling Championship.

Guyana's debut was a success, as while they lost both of their games to the US, they beat Brazil twice to secure second place and a spot in the World Qualification Event.

A women's event was scheduled with Brazil taking on the United States, but Brazil chose to concede, going straight to the 2019 World Qualification Event.

[3] The teams played a double round robin to determine the winner of the challenge.