1. Round | 28/02/2021 | Mito HollyHock | - | Omiya Ardija | 1:2 | ||||
2. Round | 06/03/2021 | Giravanz Kitakyushu | - | Mito HollyHock | 1:2 | ||||
3. Round | 13/03/2021 | Júbilo Iwata | - | Mito HollyHock | 3:2 | ||||
4. Round | 21/03/2021 | Mito HollyHock | - | FC Machida Zelvia | 3:0 | ||||
5. Round | 28/03/2021 | Mito HollyHock | - | Matsumoto Yamaga | 3:0 | ||||
6. Round | 04/04/2021 | Tokyo Verdy | - | Mito HollyHock | 2:1 | ||||
7. Round | 11/04/2021 | Mito HollyHock | - | FC Ryūkyū | 0:2 | ||||
8. Round | 17/04/2021 | Fagiano Okayama | - | Mito HollyHock | 1:2 | ||||
20. Round | 26/06/2021 | Albirex Niigata | - | Mito HollyHock | 0:0 | ||||
21. Round | 03/07/2021 | Mito HollyHock | - | Renofa Yamaguchi | 0:0 | ||||
22. Round | 11/07/2021 | FC Machida Zelvia | - | Mito HollyHock | 2:1 | ||||
23. Round | 17/07/2021 | Matsumoto Yamaga | - | Mito HollyHock | 0:1 |