Atlético Nacional came in as the defending champions having won the title in the 2015 season's Finalización tournament.
20 teams competed against one another, eighteen returning from last season plus Atlético Bucaramanga and Fortaleza, who were promoted from the 2015 Primera B and will be returning to the top tier after 7 years and 1 year, respectively, replacing Uniautónoma and Cúcuta Deportivo who were relegated at the end of the last season.
Independiente Medellín won its sixth title in the Torneo Apertura after beating Junior in the finals, while in the Torneo Finalización Santa Fe won its ninth title after beating Deportes Tolima in the finals.
Source: DIMAYOR The First Stage began on 1 July and featured the same format used in the Torneo Apertura, with reversed fixtures.
Source: DIMAYOR A separate table is kept to determine the teams that get relegated to the Categoría Primera B for the next season.