2018 Thai League 4 Southern Region is the 9th season of the League competition since its establishment in 2009. It is in the fourth tier of the Thai football league system.
Promoted from the 2017 Thailand Amateur League Southern Region
Relegated to the 2018 Thailand Amateur League Southern Region
A T4 team could registered five foreign players by at least one player from AFC member countries and at least one player from ASEAN member countries. A team can use four foreign players on the field in each game, including at least one player from the AFC member countries or ASEAN member countries (3+1).
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In the third leg, the winner on head-to-head result of the first and the second leg will be home team. If head-to-head result are tie, must to find the home team from head-to-head goals different. If all of head-to-head still tie, must to find the home team from penalty kickoff on the end of each second leg match (This penalty kickoff don't bring to calculate points on league table, it's only the process to find the home team on third leg).
Source: Thai League 4<br /> Note:<br /> Some error of T4 official match report 15 July 2018 (Krabi (B) 0âÂÂ1 Pattani).<br /> Some error of T4 official match report 5 August 2018 (Krabi (B) 3âÂÂ2 Phattalung).<br /> Some error of T4 official match report 25 August 2018 (Krabi (B) 2âÂÂ4 Hatyai City).