800 m, Men
| Competition | 1978 South American Athletics U18 Championships |
|---|---|
| Venue |
Montevideo
 URU
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Joaquim Cruz |  BRA |
1:56.1 | ||
| 🥈 | Reinaldo Silva Filho | BRA |
1:57.2 | ||
| 🥉 | Sergio Cárdenas |  CHI |
1:57.8 |