The 19th South American Junior Championships in Athletics were held in Santiago, Chile from September 24–27, 1987.

Detailed result lists can be found on the "World Junior Athletics History" website.

[1] An unofficial count yields the number of about 251 athletes from about 10 countries: Argentina (50), Bolivia (8), Brazil (49), Chile (51), Colombia (5), Ecuador (17), Paraguay (13), Peru (27), Uruguay (14), Venezuela (17).

Medal winners are published for men[2] and women[3] Complete results can be found on the "World Junior Athletics History" website.

[1] *   Host nation (Chile)