| 18. Round | 13/06/2021 | Albirex Niigata | - | Fagiano Okayama | 0:1 | ||||
| 19. Round | 19/06/2021 | Fagiano Okayama | - | FC Ryūkyū | 3:0 | ||||
| 20. Round | 26/06/2021 | Kyoto Sanga FC | - | Fagiano Okayama | 2:0 | ||||
| 21. Round | 03/07/2021 | Fagiano Okayama | - | Ventforet Kofu | 1:3 | ||||
| 22. Round | 11/07/2021 | Zweigen Kanazawa | - | Fagiano Okayama | 0:0 | ||||
| 23. Round | 18/07/2021 | Fagiano Okayama | - | Thespakusatsu Gunma | 0:1 | ||||
| 37. Round | 03/11/2021 | Ventforet Kofu | - | Fagiano Okayama | 1:2 | ||||
| 38. Round | 07/11/2021 | Fagiano Okayama | - | Montedio Yamagata | 1:0 | ||||
| 41. Round | 28/11/2021 | V-Varen Nagasaki | - | Fagiano Okayama | 0:1 | ||||
| 42. Round | 05/12/2021 | Fagiano Okayama | - | JEF United Chiba | 1:3 |
Japan