Templat:Klasemen Liga 1 Thailand 2020
| Pos | Tim | Main | M | S | K | MG | KG | SG | Poin | Kualifikasi atau degradasi |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | BG Pathum United | 9 | 7 | 2 | 0 | 14 | 4 | +10 | 23 | Lolos ke Penyisihan grup Liga Champions AFC 2021 |
| 2 | Chiangrai United | 9 | 5 | 2 | 2 | 16 | 9 | +7 | 17 | |
| 3 | Ratchaburi Mitr Phol | 9 | 5 | 2 | 2 | 16 | 12 | +4 | 17 | Lolos ke Babak pendahuluan 2 Liga Champions AFC 2021 |
| 4 | Sukhothai | 9 | 5 | 2 | 2 | 17 | 14 | +3 | 17 | |
| 5 | Port | 8 | 5 | 1 | 2 | 21 | 11 | +10 | 16 | |
| 6 | Chonburi | 9 | 5 | 1 | 3 | 11 | 10 | +1 | 16 | |
| 7 | Bangkok United | 9 | 5 | 0 | 4 | 17 | 14 | +3 | 15 | |
| 8 | PTR | 9 | 4 | 3 | 2 | 12 | 10 | +2 | 15 | |
| 9 | Suphanburi | 9 | 3 | 2 | 4 | 8 | 8 | 0 | 11 | |
| 10 | Buriram United | 8 | 3 | 1 | 4 | 11 | 9 | +2 | 10 | |
| 11 | Muangthong United | 8 | 3 | 1 | 4 | 8 | 7 | +1 | 10 | |
| 12 | Samut Prakan City | 9 | 2 | 4 | 3 | 11 | 12 | −1 | 10 | |
| 13 | Nakhon Ratchasima | 9 | 2 | 2 | 5 | 11 | 21 | −10 | 8 | |
| 14 | PT Prachuap | 9 | 1 | 3 | 5 | 7 | 14 | −7 | 6 | Degradasi ke Liga 2 Thailand 2021 |
| 15 | Trat | 9 | 2 | 0 | 7 | 8 | 17 | −9 | 6 | |
| 16 | Rayong | 8 | 0 | 0 | 8 | 4 | 20 | −16 | 0 |
Per pertandingan yang dimainkan pada 13 September 2020. Sumber: Thai League
Kriteria penentuan peringkat: 1) poin; 2) head-to-head poin; 3) head-to-head selisih gol; 4) head-to-head gol memasukan; 5) selisih gol keseluruhan; 6) gol memasukan keseluruhan; 7) poin fair play; 8) play-off tanpa ekstra time.
Kriteria penentuan peringkat: 1) poin; 2) head-to-head poin; 3) head-to-head selisih gol; 4) head-to-head gol memasukan; 5) selisih gol keseluruhan; 6) gol memasukan keseluruhan; 7) poin fair play; 8) play-off tanpa ekstra time.