It was created on 14 October 1988 in Asunción on the initiative of Argentina, Brazil, Chile, Paraguay, and Uruguay, counting with a total of 16 unions.

The members also set up the Copa Libertadores de Rugby, contested by the national champions of each association, to be held in Punta del Este.

[3] In 2019, Sudamérica Rugby announced the creation of "Superliga Americana", the first professional competition in the region.

To begin in February 2020, the tournament will be contested by five clubs of five countries, playing in a double round-robin basis.

[6] The other teams taking part in the tournament will be Corinthians (Brazil), Selknam (Chile), Cafeteros Pro (Colombia), Olimpia Lions (Paraguay), and Peñarol (Uruguay).