Updated to match(es) played on 26 August 2018; PLT etiquette meeting report of Nakhon Nayok vs Pattaya United U-23 in this link. Source: Thai League 4 Rules for classification: 1) Points; 2) Head-to-head points; 3) Overall goals difference; 4) Overall goals scored; 5) Fair play points; 6) Play-off without extra time;).[8] (C) Champions; (Q) Qualified for the phase indicated; (R) Relegated Notes:
^ abKabin United head-to-head record equaluate to Isan D'beachaura Pattaya. Kabin United ahead on Goal Different; Kabin United 0, Isan D'beachaura Pattaya -5
Updated to match(es) played on 2 July 2018. Source: Thai League 4 Legend: Blue = home team win; Yellow = draw; Red = away team win.
Results 3rd match for each team
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 Note: cancelPattaya United U-23 don't play Nakhon Nayok vs Pattaya United U-23 game. PLT judge this game to Nakhon Nayok win 2 - 0.[10] Unk.1 Some error of T4 official match report 20 May 2018 (Chonburi U-23 0–0 Chanthaburi).[11]