2nd Leg 2021/22-season
| Pos | Club | P | W | D | L | F | A | GD | Pts |
|---|---|---|---|---|---|---|---|---|---|
| 1 |  Lamphun Warriors | 17 | 14 | 2 | 1 | 39 | 14 | 25 | 44 |
| 2 |  Sukhothai | 17 | 12 | 2 | 3 | 35 | 18 | 17 | 38 |
| 3 |  Muangkan United | 17 | 9 | 4 | 4 | 39 | 30 | 9 | 31 |
| 4 |  Phrae United | 17 | 8 | 6 | 3 | 30 | 18 | 12 | 30 |
| 5 |  Chainat Hornbill | 17 | 7 | 8 | 2 | 31 | 26 | 5 | 29 |
| 6 |  Lampang | 17 | 8 | 4 | 5 | 38 | 19 | 19 | 28 |
| 7 |  Nakhon Pathom United | 17 | 7 | 6 | 4 | 22 | 19 | 3 | 27 |
| 8 |  Rayong | 17 | 7 | 5 | 5 | 22 | 17 | 5 | 26 |
| 9 |  Trat | 17 | 7 | 4 | 6 | 22 | 20 | 2 | 25 |
| 10 |  Rajpracha | 17 | 6 | 3 | 8 | 19 | 17 | 2 | 21 |
| 11 |  Ayutthaya United | 17 | 4 | 7 | 6 | 19 | 24 | -5 | 19 |
| 12 |  Ranong United | 17 | 5 | 4 | 8 | 11 | 21 | -10 | 19 |
| 13 |  Customs Ladkrabang United | 17 | 5 | 3 | 9 | 13 | 22 | -9 | 18 |
| 14 |  Kasetsart | 17 | 4 | 6 | 7 | 17 | 27 | -10 | 18 |
| 15 |  Chiang Mai | 17 | 4 | 5 | 8 | 18 | 29 | -11 | 17 |
| 16 |  Udon Thani | 17 | 3 | 4 | 10 | 14 | 35 | -21 | 13 |
| 17 |  Khon Kaen | 17 | 2 | 5 | 10 | 13 | 29 | -16 | 11 |
| 18 |  Navy | 17 | 1 | 2 | 14 | 18 | 35 | -17 | 5 |