| 1955 | | Guayaquil | Unplaced |
| 1956 | | Guayaquil | 2nd runner-up |
| 1958 | | Guayaquil | Unplaced |
| 1959 | | Guayaquil | Unplaced |
| 1968 | | Guayaquil | Finalist |
| 1969 | | Guayaquil | Unplaced |
| 1971 | | Quito | Unplaced |
| 1975 | | Guayaquil | Unplaced |
| 1980 | | Guayaquil | Unplaced |
| 1983 | | Guayaquil | Winner |
| 1986 | | Guayaquil | 2nd runner-up |
| 1987 | | Guayaquil | Unplaced |
| 1987 | | Guayaquil | Unplaced |
| 1991 | | Guayaquil | Unplaced |
| 1993 | | Quito | Unplaced |
| 1996 | | Quito | Unplaced |
| 1998 | | Quito | 1st runner-up |
| 2000 | | Guayaquil | Unplaced |
| 2001 | | Quito | Unplaced |
| 2001 | | Quito | 3rd runner-up |
| 2001 | | Quito | Unplaced |
| 2002 | | Guayaquil | Unplaced |
| 2002 | | Guayaquil | Unplaced |
| 2005 | | Quito | Unplaced |
| 2007 | | Guayaquil | Unplaced |
| 2009 | | Manta | Winner |
| 2010 | | Quito | Unplaced |
| 2012 | | La Libertad | Unplaced |
| 2012 | | La Libertad | Unplaced |
| 2014 | | Guayaquil | Winner |
| 2014 | | Guayaquil | 4th runner-up |
| 2016 | | Machala | 3rd runner-up |
| 2018 | | Machala | Winner |
| 2020 | | Manta | Semifinalist |
| 2021 | | Quevedo | Winner |
