Nantinya hanya ada dua tim dari masing-masing grup yang lolos ke babak semifinal Liga 2 2021.
Hanya ada tiga tim dari Liga 2 yang berhak promosi ke Liga 1 2022.
Berikut hasil dan klasemen Liga 2 2021:Rabu (15/12/2021)Sriwijaya FC 2-1 PersibaRans Cilegon FC 4-3 PersisKamis (16/12/2021)PSMS Vs Sulut UnitedDewa United Vs PSIM
Grup A
| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Rans Cilegon FC | 1 | 1 | 0 | 0 | 4 | 3 | +1 | 3 |
| 2 | Sriwijaya FC | 1 | 1 | 0 | 0 | 2 | 1 | +1 | 3 |
| 3 | Persis | 1 | 0 | 0 | 1 | 3 | 4 | −1 | 0 |
| 4 | Persiba | 1 | 0 | 0 | 1 | 1 | 2 | −1 | 0 |
Grup B
| Pos | Team | Pld | W | D | L | GF | GA | GD | Pts |
|---|---|---|---|---|---|---|---|---|---|
| 1 | PSMS | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2 | Dewa United | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3 | PSIM | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4 | Sulut United | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |