2021 First round
Group A
| Pl | W | D | L | Diff | Pts | |||
| 1 | Sriwijaya | 10 | 6 | 2 | 2 | 14:6 | 8 | 20 |
| 2 | PSMS Medan | 10 | 5 | 4 | 1 | 15:8 | 7 | 19 |
| 3 | PSPS Riau | 10 | 4 | 3 | 3 | 8:9 | -1 | 15 |
| 4 | Semen Padang | 10 | 2 | 4 | 4 | 10:12 | -2 | 10 |
| 5 | Muba United | 10 | 2 | 3 | 5 | 5:10 | -5 | 9 |
| 6 | Tiga Naga | 10 | 2 | 2 | 6 | 9:16 | -7 | 8 |
Group B
| Pl | W | D | L | Diff | Pts | |||
| 1 | Dewa United | 10 | 7 | 1 | 2 | 15:5 | 10 | 22 |
| 2 | RANS Nusantara | 10 | 6 | 2 | 2 | 13:7 | 6 | 20 |
| 3 | Persekat | 10 | 6 | 2 | 2 | 15:8 | 7 | 20 |
| 4 | Perserang Serang | 10 | 4 | 1 | 5 | 10:17 | -7 | 13 |
| 5 | PSKC Cimahi | 10 | 2 | 1 | 7 | 8:16 | -8 | 7 |
| 6 | Badak Lampung | 10 | 1 | 1 | 8 | 9:17 | -8 | 4 |
Group C
| Pl | W | D | L | Diff | Pts | |||
| 1 | Persis Solo | 10 | 6 | 2 | 2 | 19:8 | 11 | 20 |
| 2 | PSIM Yogyakarta | 10 | 5 | 4 | 1 | 12:6 | 6 | 19 |
| 3 | PSCS Cilacap | 10 | 4 | 4 | 2 | 8:7 | 1 | 16 |
| 4 | Persijap Jepara | 10 | 2 | 6 | 2 | 12:13 | -1 | 12 |
| 5 | Bekasi City | 10 | 2 | 2 | 6 | 9:15 | -6 | 8 |
| 6 | PS Hizbul Wathan | 10 | 0 | 4 | 6 | 7:18 | -11 | 4 |
Group D
| Pl | W | D | L | Diff | Pts | |||
| 1 | Sulut Utd | 10 | 3 | 6 | 1 | 11:8 | 3 | 15 |
| 2 | Balikpapan | 10 | 4 | 3 | 3 | 9:8 | 1 | 15 |
| 3 | Persewar Waropen | 10 | 3 | 4 | 3 | 10:9 | 1 | 13 |
| 4 | Kalteng Putra | 10 | 4 | 1 | 5 | 8:10 | -2 | 13 |
| 5 | PSBS Biak Numfor | 10 | 3 | 3 | 4 | 9:12 | -3 | 12 |
| 6 | Mitra Kukar | 10 | 3 | 3 | 4 | 10:10 | 0 | 12 |
Promotion ~ Liga 2 (Second round: )
Relegation
2021 Play Offs
Semi-finals
| 1 | RANS Nusantara | PSIM Yogyakarta | 3 : 0 |
| 2 | Dewa United | Persis Solo | 1 : 2 |
Final
| 1 | RANS Nusantara | Persis Solo | 1 : 2 |
3rd place
| 2 | PSIM Yogyakarta | Dewa United | 0 : 1 |
2021 Second round
Group X
| Pl | W | D | L | Diff | Pts | |||
| 1 | RANS Nusantara | 3 | 2 | 1 | 0 | 6:4 | 2 | 7 |
| 2 | Persis Solo | 3 | 2 | 0 | 1 | 7:4 | 3 | 6 |
| 3 | Sriwijaya | 3 | 1 | 1 | 1 | 2:3 | -1 | 4 |
| 4 | Balikpapan | 3 | 0 | 0 | 3 | 2:6 | -4 | 0 |
Group Y
| Pl | W | D | L | Diff | Pts | |||
| 1 | Dewa United | 3 | 2 | 1 | 0 | 5:2 | 3 | 7 |
| 2 | PSIM Yogyakarta | 3 | 1 | 2 | 0 | 3:2 | 1 | 5 |
| 3 | Sulut Utd | 3 | 1 | 0 | 2 | 2:4 | -2 | 3 |
| 4 | PSMS Medan | 3 | 0 | 1 | 2 | 1:3 | -2 | 1 |
Promotion ~ Liga 2 (Play Offs: )
Social Media