5 - 2
2018 AFC CHAMPIONS LEAGUE
SCG Muangthong United competed in the playoffs in 2018. They won the first match 5-2 at home over Malaysia's JDT, but lost 3-0 away to Kashiwa Reysol in Japan. Kashiwa then qualified for the AFC Champions League group stage.
The team that wins the Thai League qualifies into the AFC Champions League group stage. The second place team, and the FA Cup team, qualify into the preliminary (playoff) rounds.
Should the FA cup winner also be the first or second place team, then the allocation passes to third.