The season began on 14 February 2020 and is scheduled to conclude on 31 March 2021.
Note: Flags indicate national team as has been defined under FIFA eligibility rules.
Players may hold more than one non-FIFA nationality; Club dissolved during season would shown by grey background.
In order to preserve chronological evolvements, any postponed matches are not included in the round at which they were originally scheduled, but added to the full round they were played immediately afterwards.
For example, if a match is scheduled for matchday 13, but then postponed and played between days 16 and 17, it will be added to the standings for day 16.sheets Updated to games played on 31 March 2021Source: Thai LeagueNotes:† Teams played previous season in Thai League 3 Source: Thai League Note:Unk.1 Some error of T2 official match report 3 March 2021 (Udon Thani 1–1 Khonkaen United).Unk.2 Some error of T2 official match report 31 March 2021 (Kasetsart 0–3 Nongbua Pitchaya).