[2] Relegated from K3 League Advanced Promoted to K3 League Advanced Withdrawn Newly joined In this year, the number of foreign players limition is changed.
Restricting the number of foreign players strictly to four per team, including a slot for a player from AFC countries.
A team could use four foreign players on the field each game including at least one player from the AFC confederation.
[3] Players name in bold indicates the player is registered during the mid-season transfer window.
The promotion-relegation playoff was contested between winners of Basic league playoff (semi-final) and 10th-placed team of Advanced league,[4] but the match became meaningless after Korea Football Association decided to examine every K3 League club for qualification for newly-founded K3 League or K4 League.