the 2004 j.league division 1 season was the 12th season of the j1 league. the league fixture began on march 13, 2004 and ended on december 11, 2004. the suntory championship 2004 took place on december 5 and december 11, 2004. the first ever j.league promotion / relegation series took place on december 4 and december 12, 2004.