The 2004 Categoría Primera A season is the 57th season of Colombia's top-flight football league.
The Campeonato Apertura (officially the 2004 Copa Mustang I for sponsorship reasons) was the first tournament of the season. It began on February 1 and ended on May 16.
Pts=Puntos; GP=Games Played; W=Wins; D=Draw; L=Lost; GF=Goals Favored; GA=Goals Allowed; DIF=Difference
The second phase of the 2005-I tournament consisted of two groups of 4 teams semifinals. This was disputed by the best eight teams from the first phase of the tournament. the winners of each group will face on the finals to define a champion.
The Campeonato Finalización (officially the 2004 Copa Mustang II for sponsorship reasons) was the second tournament of the season. It began on August 1 and ended on December 19.
Pts=Puntos; GP=Games Played; W=Wins; D=Draw; L=Lost; GF=Goals Favored; GA=Goals Allowed; DIF=Difference
The second phase of the 2005-I tournament consisted of two groups of 4 teams semifinals. This was disputed by the best eight teams from the first phase of the tournament. the winners of each group will face on the finals to define a champion.