Templat:Klasemen Liga 1 Thailand 2020
| Pos | Tim | Main | M | S | K | MG | KG | SG | Poin | Kualifikasi atau degradasi |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Bangkok United | 4 | 4 | 0 | 0 | 10 | 3 | +7 | 12 | Lolos ke Penyisihan grup Liga Champions AFC 2021 |
| 2 | RBM | 4 | 4 | 0 | 0 | 8 | 4 | +4 | 12 | |
| 3 | Port | 4 | 3 | 1 | 0 | 11 | 4 | +7 | 10 | Lolos ke Babak pendahuluan 2 Liga Champions AFC 2021 |
| 4 | BGP | 4 | 3 | 1 | 0 | 6 | 1 | +5 | 10 | |
| 5 | Suphanburi | 5 | 3 | 1 | 1 | 4 | 2 | +2 | 10 | |
| 6 | SUK | 5 | 3 | 0 | 2 | 7 | 6 | +1 | 9 | |
| 7 | PTR | 4 | 3 | 0 | 1 | 5 | 4 | +1 | 9 | |
| 8 | Chonburi | 5 | 3 | 0 | 2 | 8 | 8 | 0 | 9 | |
| 9 | CRU | 5 | 2 | 2 | 1 | 8 | 7 | +1 | 8 | |
| 10 | Muangthong United | 5 | 2 | 0 | 3 | 6 | 5 | +1 | 6 | |
| 11 | Buriram United | 4 | 1 | 1 | 2 | 8 | 6 | +2 | 4 | |
| 12 | Samut Prakan City | 5 | 1 | 1 | 3 | 4 | 8 | −4 | 4 | |
| 13 | NRM | 5 | 1 | 0 | 4 | 4 | 11 | −7 | 3 | |
| 14 | PT Prachuap | 5 | 0 | 1 | 4 | 2 | 7 | −5 | 1 | Degradasi ke Liga 2 Thailand 2021 |
| 15 | RAY | 5 | 0 | 0 | 5 | 1 | 8 | −7 | 0 | |
| 16 | Trat | 5 | 0 | 0 | 5 | 3 | 12 | −9 | 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.