Americas Rugby Championship
The Americas Rugby Championship, often informally called the Americas' Six Nations, was an annual international rugby tournament between six North and South American nations: Argentina, Brazil, Canada, Chile, the United States and Uruguay. The original Americas Rugby Championship (organised by World Rugby) was inaugurated in 2009, when various combinations of national, regional and development teams from North and South America competed for the title.
Source: Wikipedia — Americas Rugby Championship (CC BY-SA 4.0)