| 1955 | | Guayaquil | 1st runner-up |
| 1955 | | Guayaquil | Unplaced |
| 1957 | | Guayaquil | Unplaced |
| 1964 | | Guayaquil | 1st runner-up |
| 1969 | | Guayaquil | Winner |
| 1970 | | Guayaquil | Unplaced |
| 1970 | | Guayaquil | Unplaced |
| 1970 | | Guayaquil | Unplaced |
| 1970 | | Guayaquil | Unplaced |
| 1970 | | Guayaquil | Unplaced |
| 1970 | | Guayaquil | Unplaced |
| 1970 | | Guayaquil | Unplaced |
| 1970 | | Guayaquil | 1st runner-up |
| 1970 | | Guayaquil | Unplaced |
| 1970 | | Guayaquil | Unplaced |
| 1971 | | Quito | 2nd runner-up |
| 1972 | | Guayaquil | 1st runner-up |
| 1974 | | Guayaquil | Winner |
| 1977 | | Guayaquil | Unplaced |
| 1977 | | Guayaquil | 3rd runner-up |
| 1977 | | Guayaquil | Unplaced |
| 1977 | | Guayaquil | Unplaced |
| 1977 | | Guayaquil | Unplaced |
| 1977 | | Guayaquil | 1st runner-up |
| 1977 | | Guayaquil | Unplaced |
| 1980 | | Guayaquil | Unplaced |
| 1985 | | Guayaquil | Unplaced |
| 1996 | | Quito | Unplaced |
| 1997 | | Quito | Unplaced |
| 1997 | | Quito | Unplaced |
| 1997 | | Quito | Unplaced |
| 1998 | | Quito | Winner |
| 1999 | | Quito | Unplaced |
| 1999 | | Quito | 1st runner-up |
| 2003 | | Quito | 1st runner-up |
| 2006 | | Cuenca | 1st runner-up |
| 2008 | | Quito | Unplaced |
| 2010 | | Quito | Unplaced |
| 2014 | | Guayaquil | Unplaced |
| 2017 | | Babahoyo | Semifinalist |
| 2018 | | Machala | Unplaced |
| 2020 | | Manta | Finalist |
| 2022 | | Quevedo | Unplaced |
| 2022 | | Quevedo | Semifinalist |
| 2024 | | Salinas | Unplaced |
| 2024 | | Salinas | Unplaced |
| 2024 | | Salinas | Semifinalist |
| 2024 | | Salinas | Unplaced |
