| 2015 | Clay | Philipp Kohlschreiber m. Paul Henri Mathieu 2-6 6-2 6-2 |
| 2014 | Clay | David Goffin m. Dominic Thiem 4-6 6-1 6-3 |
| 2013 | Clay | Marcel Granollers m. Juan Monaco 0-6 7-6(3) 6-4 |
| 2012 | Clay | Robin Haase m. Philipp Kohlschreiber 6-7(2) 6-3 6-2 |
| 2011 | Clay | Robin Haase m. Albert Montanes 6-4 4-6 6-1 |
| 2008 | Clay | Juan Martin del Potro m. Jurgen Melzer 6-2 6-1 |
| 2007 | Clay | Juan Monaco m. Potito Starace 5-7 6-3 6-4 |
| 2006 | Clay | Agustin Calleri m. Juan Ignacio Chela 7-6(9) 6-2 6-3 |
| 2005 | Clay | Gaston Gaudio m. Fernando Verdasco 2-6 6-2 6-4 6-4 |
| 2004 | Clay | Nicolas Massu m. Gaston Gaudio 7-6(3) 6-4 |
| 2003 | Clay | Guillermo Coria m. Nicolas Massu 6-1 6-4 6-2 |
| 2002 | Clay | Alex Corretja m. Juan Carlos Ferrero 6-4 6-1 6-3 |
| 2001 | Clay | Nicolas Lapentti m. Albert Costa 1-6 6-4 7-5 7-5 |
| 2000 | Clay | Alex Corretja m. Emilio Benfele Alvarez 6-3 6-1 3-0 RET |
| 1999 | Clay | Albert Costa m. Fernando Vicente 7-5 6-2 6-7(5) 7-6(4) |
| 1998 | Clay | Albert Costa m. Andrea Gaudenzi 6-2 1-6 6-2 3-6 6-1 |
| 1997 | Clay | Filip Dewulf m. Julian Alonso 7-6(2) 6-4 6-1 |
| 1996 | Clay | Alberto Berasategui m. Alex Corretja 6-2 6-4 6-4 |
| 1995 | Clay | Albert Costa m. Thomas Muster 4-6 6-4 7-6(3) 2-6 6-4 |
| 1994 | Clay | Goran Ivanisevic m. Fabrice Santoro 6-2 4-6 4-6 6-3 6-2 |
| 1993 | Clay | Thomas Muster m. Javier Sanchez 6-3 7-5 6-4 |
| 1992 | Clay | Pete Sampras m. Alberto Mancini 6-3 7-5 6-3 |
| 1991 | Clay | Karel Novacek m. Magnus Gustafsson 7-6(2) 7-6(4) 6-2 |
| 1990 | Clay | Horacio De La Pena m. Karel Novacek 6-4 7-6 2-6 6-2 |
| 1989 | Clay | Emilio Sanchez m. Martin Jaite 7-6 6-1 2-6 6-2 |
| 1988 | Clay | Kent Carlsson m. Emilio Sanchez 6-1 6-1 4-6 4-6 6-3 |
| 1987 | Clay | Emilio Sanchez m. Miloslav Mecir 6-4 6-1 4-6 6-1 |
| 1986 | Clay | Miloslav Mecir m. Andres Gomez 6-4 4-6 6-1 2-6 6-3 |
| 1985 | Clay | Pavel Slozil m. Michael Westphal 7-5 6-2 |
| 1984 | Clay | Jose Higueras m. Victor Pecci 7-5 3-6 6-1 |
| 1983 | Clay | Guillermo Vilas m. Henri Leconte 7-6 4-6 6-4 |
| 1982 | Clay | Guillermo Vilas m. Marcos Hocevar 7-6 6-1 |
| 1981 | Clay | John Fitzgerald m. Guillermo Vilas 3-6 6-3 7-5 |
| 1980 | Clay | Guillermo Vilas m. Ivan Lendl 6-3 6-2 6-2 |
| 1979 | Clay | Vitas Gerulaitis m. Pavel Slozil 6-2 6-2 6-4 |
| 1978 | Clay | Chris Lewis m. Vladimir Zednik 6-1 6-4 6-0 |
| 1977 | Clay | Guillermo Vilas m. Jan Kodes 5-7 6-2 4-6 6-3 6-2 |
| 1976 | Clay | Manuel Orantes m. Jan Kodes 7-6 6-2 7-6 |
| 1975 | Clay | Adriano Panatta m. Jan Kodes 2-6 6-2 7-5 6-4 |
| 1974 | Clay | Balazs Taroczy m. Onny Parun 6-1 6-4 6-4 |
| 1973 | Clay | Raul Ramirez m. Manuel Orantes W/O |
| 1972 | Clay | Colin Dibley m. Dick Crealy 6-1 6-3 6-4 |
| 1971 | Clay | Manuel Orantes m. Clark Graebner 6-1 7-5 6-7 6-7 4-4 RET |
| 1970 | Clay | Zeljko Franulovic m. John Alexander 6-4 9-7 6-4 |
| 1969 | Clay | Manuel Santana m. Manuel Orantes 6-4 6-2 6-3 |
| 1968 | Clay | Martin Mulligan m. Wilhelm Bungert 6-2 6-2 6-3 |