The 2004 K League was the 22nd season of the K League. The previous single format of the league was replaced by two regular stages and playoffs in this season. Each team played a total of 12 matches against every other team in each stage. After both stages were finished, two winners and the top two clubs in the overall table qualified for the playoffs.
Regular season
First stage
The first place team qualify for the championship playoffs.
Second stage
The first place team qualified for the championship playoffs.
Overall table
The top two teams in the overall table qualified for the championship playoffs.
Championship playoffs
Bracket
Final table
Top scorers
This list includes goals of the championship playoffs. The official top goalscorer was decided with records of only regular season.
Awards
Main awards
Best XI
Source: