2013 South American Junior Championships in Athletics
| XL South American Junior Championships in Athletics | |
|---|---|
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| Host city | Resistencia, Chaco, Argentina |
| Date(s) | October 18–20 |
| Main stadium | Estadio Jaime Zapata |
| Level | Junior |
| Participation | 271 + 2 guests athletes from 11 + 1 guest nations |
| Events | 44 |
| Records set | 6 |
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The 40th South American Junior Championships in Athletics (Spanish: Campeonatos Sudamericanos de Atletismo de Juveniles) were held from October 18–20, 2013 at the Estadio Jaime Zapata in Resistencia, Chaco, Argentina.
Complete results were published.
†: In the 400 metres hurdles event, Gerald Drummond from 
Costa Rica was 3rd in 53.74, running as a guest.
A medal count was published. There is a slight difference to an unofficial medal count. However, another source supports the number of 7 gold medals for Colombia as published below.
Team scores were published.
The participation of 273 athletes (including 2 guests) from 12 countries (including 1 guest country) is published.
Guest country:
...
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