Relegated from K League 1 Promoted to K League 1 Note: Flags indicate national team as has been defined under FIFA eligibility rules.
A team could use four foreign players on the field each game.
Leaders Qualification for the promotion playoffs When the first round or semi-final match was finished as a draw, its winners were decided on the regular season rankings without extra time and the penalty shoot-out.
Attendants who entered with free ticket were not counted.
Source: K LeagueNotes:† Team played previous season in K League 1.