The 2023–24 Thai League 1 was the 27th season of the Thai League 1, the top Thai professional league for association football clubs, since its establishment in 1996, also known as Hilux Revo Thai League due to the sponsorship deal with Toyota Motor Thailand. A total of 16 teams will compete in the league.
The 1st transfer window is from 25 May to 9 August 2022 while the 2nd transfer window is from 19 December 2022 to 17 January 2023.
There are 16 clubs in the league, with three promoted teams from Thai League 2 replacing the three teams that were relegated from the 2022-23 season.
Nakhon Ratchasima, Nongbua Pitchaya and Lampang were relegated at the end of the 2022–23 season after finishing in the bottom three places of the table. Lampang made their immediate return to the second-tier, Nongbua Pitchaya ended a 2-year stint in the top-flight, while Nakhon Ratchasima ended an 8-year tenure in the top-flight. The three were replaced by 2022-23 Thai League 2 champions Nakhon Pathom United, who are returning to the top-flight after a 14-year exile that saw them participating in the lowest tier of Thai professional football in the 2018 season. They were joined by runners-up Trat, who are returning to the top-flight after 2 years away and Uthai Thani, the promotion playoff winner which was first held in 2020–21 season. While the 2023-24 season will be Uthai Thani’s debut in the top-flight, their predecessors Air Force United were last featured in the top-flight back in the 2018 season.
The FIFA Summer Transfer Window period for Thailand was held on 15 May to 4 August 2023 and Winter Transfer Window was held ob 27 December 2023 to 26 January 2024.
Each team can register a maximum of 9 foreign players. Of these, 1 must be from the AFC Confederation and no more than 3 can be from the ASEAN Confederation.
[18]
Players name in bold indicates the player was registered during the Winter Transfer Window.
Updated to match(es) played on 26 May 2024. Source: Thai League Rules for classification: Season in progress: 1) Points; 2) Goal difference; 3) Goals scored; End of season: 1) Points; 2) Head-to-head points; 3) Head-to-head goal difference; 4) Goals scored. (C) Champions; (Q) Qualified for the phase indicated; (R) Relegated Notes:
^Qualified for the Champions League Two group stage due to Đông Á Thanh Hóa's withdrawal from the competition and BG Pathum United's decision not to participate.[19]
^ abPT Prachuap are ahead of Chiangrai United on head-to-head points: PT Prachuap 4, Chiangrai United 1.
Positions by round
The table lists the positions of teams after each week of matches. 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.
