Club Argentino de Ajedrez was founded on April 17, 1905, in Buenos Aires.
Winners
{| class="sortable wikitable" ! Year !! Winner |- | 1906–1907 || Benito Villegas |- | 1908 || Julio Lynch |- | 1909 || Alejandro Mom |- | 1910 || Rolando Illa |- | 1911 || Julio Lynch |- | 1912–1919 || Rolando Illa |- | 1920–1921 || Julio Lynch |- | 1922 || Carlos Portela |- | 1923 || Enrique Ibañez |- | 1924 || Julio Lynch |- | 1925–1928 || Carlos Portela |- | 1929–1930 || Julio Lynch |- | 1931–1948 || Aaron Schvartzman |- | 1949–1951 || Enrique Reinhardt |- | 1952 || Luis Piazzini |- | 1953 || Oscar Panno |- | 1954 || Leonardo Lipiniks |- | 1955 || Enrique Reinhardt |- | 1956–1957 || Raúl Sanguinetti |- | 1958–1962 || Alfredo Esposito |- | 1963–1964 || Ruben Rollansky |- | 1965–1992 || Oscar Panno |- | 1993 || Humberto Borghi |- | 1994 || Javier Moreno |- | 1995–2006 || Hugo Spangenberg |- | 2007 || Sandro Mareco
References Club Argentino de Ajedrez El Centenario del Club Argentino de Ajedrez