History
Formerly South American Juniors (Sudamericano Juniors). Now organised under the name of South American U20 Championships. The event dated back to 1959 and consistently held since then. It started between Chile and Argentina in Buenos Aires, but expanded to five nations in the third edition. In 1966, Montevideo was hosted first event where women included as more than 150 athletes performed that year.
During 2007 and 2009 editions, race walks, 10,000 metres and combined events medallists were extracted from Pan American Juniors which held simultaneously.
MOST SUCCESSFUL NATION IN A SINGLE EDITION
Brazil (BRA) in Belem 2002 (33-14-16)
MOST MEDALS IN TOTAL (Single edition)
Brazil (BRA) in Belem 2002 (63 medals)
MOST TITLES IN ONE EDITION
4 Norma Gonzalez (COL) in 1999 (200m, 400m, 4x100m, 4x400m)
4 Paulo Poersch (BRA) in 1996 (100m, 200m, 4x100m, 4x400m)
4 Juan Stocker (ARG) in 1960 (100m, 200m, 4x100m, 4x400m)
4 Juan Carlos Dryzka (ARG) in 1960 (110H, 400H, 400m, 4x400m)
4 Josiane Tito (BRA) in 1997 (400m, 800m, 4x100m, 4x400m)
4 Jupira de Graça (BRA) in 1989 (100m, 200m, 4x100m, 4x400m)
MOST SUCCESSFUL ATHLETES
9-2-0 Jupira da Graça (BRA)
8-4-0 Norma Gonzalez (COL)
8-1-1 Kelly de Oliveira (BRA)
8-0-0 Fatima dos Santos (BRA)
8-0-0 Josiane Tito (BRA)
7-4-0 Celia dos Santos (BRA)
7-3-3 Janeth Caizalitin (ECU)
7-2-1 Beatriz Capotosto (ARG)
7-1-1 Victor Hugo Goulart (BRA)
7-1-1 Amanda Dias (BRA)
7-0-0 Emerson Perin (BRA)
6-2-0 Aline Figuiredo (BRA)
6-2-1 Lucimar de Moura (BRA)
6-1-0 Inaldo Sena (BRA)
6-0-1 Vinicius Galeno (BRA)
6-0-0 Paulo Poersch (BRA)
OLDEST ACTIVE CHAMPIONSHIP RECORDS
Men's HJ: Alfredo Deza (PER), 2.23 in Cordoba 1998
Women's 1500m: Keila Costa (BRA), 13.78 in Belem 2002
Panama 
Bolivia 
Surinam