Argentina Open 1978
Jose Luis Clerc won the title, beating Victor Pecci 6–4 6–4 in the final.
Latest results
- Semifinal: Victor Pecci def. Corrado Barazzutti 6–4 6–4
- Semifinal: Jose Luis Clerc def. Harold Solomon 6–2 1–6 6–2
- Quarterfinal: Corrado Barazzutti def. Carlos Kirmayr 6–4 6–7 6–3
- Quarterfinal: Victor Pecci def. Jose Higueras DEF
Buenos Aires 1978 1978
- Defending champion
- Guillermo Vilas
Ranking points by round
| Champion | 250 |
| Runner-up | 165 |
| Semifinal | 100 |
| Quarterfinal | 50 |
| Round of 16 | 25 |
| Round of 32 | 0 |
| Qualifier bonus | 13 |
Recent finals
| Year | Champion | Runner-up |
|---|---|---|
| 1977 | Guillermo Vilas | Jaime Fillol |
| 1976 | Guillermo Vilas | Jaime Fillol |
| 1975 | Guillermo Vilas | Adriano Panatta |
| 1974 | Guillermo Vilas | Manuel Orantes |
| 1973 | Guillermo Vilas | Bjorn Borg |
| 1972 | Karl Meiler | Guillermo Vilas |
| 1971 | Zeljko Franulovic | Ilie Nastase |
| 1970 | Zeljko Franulovic | Manuel Orantes |
Matches by round
31 finishedFinal
1 finishedFin
Semifinals
2 finishedFin
Fin
Quarterfinals
4 finishedFin
Fin
Fin
Fin
Round of 16
8 finishedFin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Round of 32
16 finishedFin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin
Fin