| 1957 | | Guayaquil | Unplaced |
| 1973 | | Guayaquil | Winner |
| 1975 | | Guayaquil | Unplaced |
| 1983 | | Guayaquil | Unplaced |
| 1984 | | Guayaquil | Unplaced |
| 1984 | | Guayaquil | Unplaced |
| 1989 | | Guayaquil | Unplaced |
| 1991 | | Guayaquil | 2nd runner-up |
| 1991 | | Guayaquil | Unplaced |
| 1991 | | Guayaquil | 3rd runner-up |
| 1992 | | Guayaquil | 1st runner-up |
| 1993 | | Quito | Unplaced |
| 1993 | | Quito | Unplaced |
| 1994 | | Guayaquil | Unplaced |
| 1996 | | Quito | Unplaced |
| 1997 | | Quito | Unplaced |
| 1999 | | Quito | 3rd runner-up |
| 2000 | | Guayaquil | Unplaced |
| 2002 | | Guayaquil | Unplaced |
| 2003 | | Quito | 3rd runner-up |
| 2003 | | Quito | Unplaced |
| 2004 | | Guayaquil | Unplaced |
| 2006 | | Cuenca | Unplaced |
| 2007 | | Guayaquil | Unplaced |
| 2008 | | Quito | Unplaced |
| 2008 | | Quito | Unplaced |
| 2009 | | Manta | Unplaced |
| 2009 | | Manta | Unplaced |
| 2012 | | La Libertad | Unplaced |
| 2014 | | Guayaquil | Unplaced |
| 2015 | | Guayaquil | 1st runner-up |
| 2015 | | Guayaquil | Unplaced |
| 2016 | | Machala | Unplaced |
| 2016 | | Machala | Unplaced |
| 2018 | | Machala | Unplaced |
| 2018 | | Machala | Unplaced |
| 2019 | | Guayaquil | Unplaced |
| 2021 | | Quevedo | Unplaced |
| 2021 | | Quevedo | Semifinalist |
| 2022 | | Quevedo | Unplaced |
| 2022 | | Quevedo | Unplaced |
| 2023 | | Santo Domingo | 2nd runner-up |
