Pan American Games Aires in 1940, the participants decided that the first games should be held in Buenos Aires in 1942. The plans had to be postponed because of World War II. A second Pan American Sports Congress held in London during the 1948 Summer Olympics reconfirmed Buenos Aires as the choice of host city for the inaugural games, which were held in 1951. The games offered 18 sports. Countries that were part of the Commonwealth of Nations such as Canada did not compete at the first Pan American Games. The second games were held in Mexico City, Mexico. Competitions started on March
Circuito Costanera (Buenos Aires) Circuito Costanera (Buenos Aires) The Circuito Costanera (commonly known as the Costanera Circuit), was a Grand Prix circuit in Buenos Aires (Argentina). Two variants are known to have existed under Circuito "Avenida" Costanera and Costanera "Sur" which are listed by a few data sources as circuits used for the 1930, 1932 and 1936 Buenos Aires races. Verifiable records can only confirm the Costanera Norte circuit layouts for the 1951 V Gran Premio General Perón (Feb. 18), V Gran Premio Eva Perón (Feb. 25), Gran Premio Eva Perón (Ciudad) Sport (March 18) and the 1957 1000 km de Buenos Aires. The