| 1955 | | Guayaquil | Unplaced |
| 1961 | | Guayaquil | Unplaced |
| 1963 | | Guayaquil | Unplaced |
| 1964 | | Guayaquil | 4th runner-up |
| 1968 | | Guayaquil | 1st runner-up |
| 1974 | | Guayaquil | Unplaced |
| 1980 | | Guayaquil | Unplaced |
| 1980 | | Guayaquil | Unplaced |
| 1984 | | Guayaquil | Unplaced |
| 1986 | | Guayaquil | Unplaced |
| 1989 | | Guayaquil | Unplaced |
| 1991 | | Guayaquil | Unplaced |
| 1993 | | Quito | Unplaced |
| 1994 | | Guayaquil | Unplaced |
| 1998 | | Quito | Unplaced |
| 1999 | | Quito | Unplaced |
| 2004 | | Guayaquil | Unplaced |
| 2006 | | Cuenca | Unplaced |
| 2007 | | Guayaquil | Unplaced |
| 2008 | | Quito | Unplaced |
| 2009 | | Manta | Unplaced |
| 2011 | | Santo Domingo de los Colorados | Unplaced |
| 2013 | | Guayaquil | Unplaced |
| 2016 | | Machala | Winner |
| 2016 | | Machala | 4th runner-up |
| 2017 | | Babahoyo | Unplaced |
| 2017 | | Babahoyo | 4th runner-up |
| 2017 | | Babahoyo | Unplaced |
| 2018 | | Machala | Unplaced |
| 2020 | | Manta | Winner |
| 2020 | | Manta | 1st runner-up |
| 2021 | | Quevedo | 2nd runner-up |
| 2022 | | Quevedo | Finalist |
| 2022 | | Quevedo | Semifinalist |
| 2024 | | Salinas | Unplaced |
