Unofficial South American Championships in Athletics were held in Buenos Aires, Argentina on May 24–26, 1918. The event was entitled "Campeonato de Iniciación". It was organized by the "Federación Pedestre Argentina", the predecessor of the "Federación Atlética Argentina" and the "Confederación Argentina de Atletismo", and was then representing Argentinian athletics.
Unofficial South American Championships in Athletics were held in Rio de Janeiro, Brazil in 1922. They were part of the "Jogos Olímpicos Latino-Americanos" held in celebration of the 100th anniversary of Brazilian independence under the patronage of the IOC.
The unofficial South American Championships in Athletics were held in the Chilean capital, Santiago, during April 1946. The event, entitled "II Campeonato Sudamericano Extraordinario Barón Pierre de Coubertin", was held in celebration of the 50th anniversary of the modern Olympic Games.
Unofficial South American Championships in Athletics were held in Montevideo, Uruguay in 1950. It is stated that the event was held in celebration of the 30th anniversary of the Uruguayan Athletics Federation. However, the foundation date of the Confederación Atlética del Uruguay (CAU) was already two years earlier on March 1, 1918.
Unofficial South American Championships in Athletics were held on 19–26 April 1953, at Chile's national stadium, Estadio Nacional in the capital, Santiago.
The third South American Junior Championships in Athletics were held in Santa Fe, Argentina from October 15–16, 1961.
The fifth South American Junior Championships in Athletics were held in Santiago, Chile from September 24–27, 1964.
The sixth South American Junior Championships in Athletics were held in Montevideo, Uruguay from October 9–14, 1966. For the first time, women's events were included.
The eighth South American Junior Championships in Athletics were held in Cali, Colombia, at the Estadio Olímpico Pascual Guerrero between October 9–12, 1970.
The ninth South American Junior Championships in Athletics were held in Asunción, Paraguay from October 21–25, 1972.
The 13th South American Junior Championships in Athletics were held in Santiago, Chile from October 23–26, 1980.
The 14th South American Junior Championships in Athletics were held in Rio de Janeiro, Brazil from October 15–18, 1981.
The 15th South American Junior Championships in Athletics were held in Medellín, Colombia from June 9–12, 1983.
The 16th South American Junior Championships in Athletics were held in Caracas, Venezuela from October 4–7, 1984.
The 19th South American Junior Championships in Athletics were held in Santiago, Chile from September 24–27, 1987.
The 24th South American Junior Championships in Athletics were held in Lima, Peru from August 21–23, 1992.
The 27th South American Junior Championships in Athletics were held in Santiago, Chile from September 5–7, 1995.
The 29th South American Junior Championships in Athletics were held in San Carlos, Uruguay from June 20–21, 1997.
The 31st South American Junior Championships in Athletics were held in Concepción, Chile from October 22–23, 1999.
