Due to the COVID-19 pandemic, the season must be postponed to start in late 2020 and end in early 2021.

[2] A total of 11 teams located in Northeastern of Thailand will compete in the league of the Northeastern region.

[3] In late December 2020, COVID-19 had spread again in Thailand, the FA Thailand must abruptly end the regional stage of the Thai League 3.

A team can use four foreign players on the field in each game, including at least one player from the AFC member countries (3+1).

Notes: 4 = Player scored 4 goals; 5 = Player scored 5 goals; (H) = Home team; (A) = Away team