Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
International athletics championship event
XXXII South American Junior Championships in Athletics
Detailed result lists can be found on the CBAt, on the IAAF and on the "World Junior Athletics History" website. An unofficial count (without the Portuguese guest athletes) yields the number of about 260 athletes from about 11 countries: Argentina (53), Bolivia (3), Brazil (66), Chile (46), Colombia (8), Ecuador (16), Panama (2), Paraguay (24), Peru (3), Uruguay (14), Venezuela (25).
Medal summary
Medal winners are published for men and women
Complete results can be found on the CBAt, on the IAAF and on the "World Junior Athletics History"
website.