Davis Cup SAM PR: ECU vs ARG 1978
Players
| Player | Country | Reached | |
|---|---|---|---|
| FF | Fernando Dalla Fontana | ARG | Round Robin |
| RC | Ricardo Cano | ARG | Round Robin |
| RY | Ricardo Ycaza | ECU | Round Robin |
 |
Andres Gomez | ECU | Round Robin |
 |
Jose Luis Clerc | ARG | Round Robin |
| RV | Raul Antonio Viver | ECU | Round Robin |
Other matches
| Round | Winner | Loser | Score |
|---|---|---|---|
| RR | Ricardo Cano | Ricardo Ycaza | 3-6 9-7 4-6 6-4 7-5 |
| RR | Jose Luis Clerc | Andres Gomez | 6-1 3-6 8-6 6-2 |
| RR | Ricardo Ycaza | Jose Luis Clerc | 6-2 6-3 |
| RR | Fernando Dalla Fontana | Raul Antonio Viver | 6-4 12-10 |