The UAR organises all the national teams, including Senior (Pumas), U-20 (Pumitas), Argentina XV, Sevens and Women's squads and the franchise Jaguares that participates in SANZAAR's Super Rugby competition.

That same year, another match was played on the Polo Field of Flores AC, part of land owned by the Unzué family.

The first team was formed by Royal Navy officers that were temporarily in Buenos Aires, with the addition of some English citizens who resided in Argentina.

Those rules were used for the first time during the match contested at Buenos Aires Cricket Club between two teams from that institution.

[2] Nevertheless, other sources say that the first game under the rules of rugby was played on Thursday, 14 May 1874, at David Mathven's country house, in Caballito, Buenos Aires.

[5] In 1899, clubs Belgrano, Rosario, Lomas, Buenos Aires and Flores[6] founded the "River Plate Rugby Union", naming Leslie William Corry-Smith as president.