100 m, Men
| Competition | 1983 South American Athletics U20 Championships |
|---|---|
| Venue |
Medellin
 COL
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Róbson Caetano da Silva |  BRA |
10.49 | ||
| 🥈 | Arnaldo da Silva | BRA |
10.68 | ||
| 🥉 | Mauricio Urquiza |  CHI |
10.73 |