2004–05 Primera División A season


Primera División A is a Mexican football tournament. This season was composed of Apertura 2004 and Clausura 2005. San Luis was the winner of the promotion to First Division after winning Querétaro in the promotion playoff.

Changes for the 2004–05 season

Apertura 2004

Group league tables

Group 1

Group 2

Group 3

Group 4

General league table

Results

Reclasification series

First leg

Second leg

Liguilla

Quarter-finals

First leg
Second leg

Semi-finals

First leg
Second leg

Final

First leg
Second leg

Clausura 2005

Group league tables

Group 1

Group 2

Group 3

Group 4

General league table

Results

Reclasification series

First leg

Second leg

Liguilla

Quarter-finals

First leg
Second leg

Semi-finals

First leg
Second leg

Final

First leg
Second leg

Relegation table

Promotion final

The Promotion Final faced San Luis against Querétaro to determine the winner of the First Division Promotion. San Luis was the winner.

First leg

Second leg

Relegation promotion

The Football Association determined the celebration of a promotion series between the penultimate team of the Primera 'A' Relegation Table against the runner-up of the Second Division, this series faced Chivas La Piedad against the Cachorros UdeG. Chivas La Piedad won the series and remained in the category.

First leg

Second leg