| 2005 |
Clay |
Julio Silva
d. Ruben Ramirez Hidalgo
6-2 6-3 |
| 2001 |
Clay |
Marcelo Rios
d. Edgardo Massa
6-4 6-2 |
| 1998 |
Clay |
Gaston Gaudio
d. Karim Alami
6-2 3-6 6-4 |
| 1997 |
Clay |
Oliver Gross
d. Francisco Cabello
6-2 6-2 |
| 1991 |
Clay |
Alberto Mancini
d. Pedro Rebolledo
6-3 6-3 |
| 1986 |
Clay |
Pablo Arraya
d. Mark Dickson
2-6 7-6 6-0 |
| 1981 |
Clay |
Hans Gildemeister
d. Andres Gomez
6-4 7-5 |
| 1980 |
Clay |
Victor Pecci
d. Christophe Freyss
4-6 6-4 6-3 |
| 1979 |
Clay |
Hans Gildemeister
d. Jose Higueras
7-5 5-7 6-4 |
| 1978 |
Clay |
Jose Luis Clerc
d. Victor Pecci
3-6 6-3 6-1 |
| 1977 |
Clay |
Guillermo Vilas
d. Jaime Fillol
6-0 2-6 6-4 |
| 1976 |
Clay |
Jose Higueras
d. Carlos Kirmayr
5-7 6-4 6-4 |