In November the Unión de Rugby del Río de la Plata (as was called before) change their name in "Unión Argentina de Rugby", as requested by the Argentina Olympic Committee .
In September, was played the "Torneo Internacional ABCU", originally think as part of 1951 Pan American Games, played in February. But was no possible to arrange a tournament of rugby for those games, so it was arranged in September. The name "ABCU" was formed by the initial of nations participating. After the 1958 edition, this tournament was recognized as the first edition of the competition.
Provincia : H. Solveyra, E. Caffarone, A. Palma, J. L. Guidi, C. Arana, R. Giles, G. Ehrman, L. Allen, M. Sarandón, R. Ochoa, J. S. Morganti (Cap.), E. Domínguez, R. Follet, C. Swain, C. Travaglini. Capital: M. A. Miguel Villar, D. Evans, E. Fernández del Casal, R. Bazán, K. Green, I. Comas, P. Felisari, C. Bertolotto, H. Fiorioli, J. O'Farrell, J. Piccardo, C. Morea, M. Lanusse, F. Erazun, R. Pont Lezica.