100 m Butterfly, Men
| Competition | 1978 South American Aquatics Championships |
|---|---|
| Venue |
Guayaquil
 ECU
|
| Held | — |
| Status | Medal |
| Competitors | 3 |
| Countries | 2 |
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Enrique Ledesma | ECU |
57.23 | ||
| 🥈 | Jorge Delgado, Jr. | ECU |
57.87 | ||
| 🥉 | Rômulo Arantes |  BRA |
58.43 |