Champion, runner up and teams ranked 3rd – 6th qualified in play off for last spot in top tier promoted to Thai League 1 at the end of the season, whilst three are relegated to Thai League 3.

In 2016, the Khǒr Royal Cup became a trophy for Thai Division 1 League.

In 2017 the Football Association of Thailand[1] changed the name to Thai League 2.

[2] Champion and runner up directly promoted to the Thai League 1, teams ranked 3rd – 6th qualified in play off for last spot in top tier next season.

The bottom three teams will be relegated to the Thai League 3.