| 23. Round | 09/08/2021 | Shonan Bellmare | - | Kashima Antlers | 1:2 | ||||
| 24. Round | 15/08/2021 | Kashima Antlers | - | Tokushima Vortis | 3:0 | ||||
| 25. Round | 21/08/2021 | Vissel Kobe | - | Kashima Antlers | 1:0 | ||||
| 26. Round | 25/08/2021 | Shimizu S-Pulse | - | Kashima Antlers | 0:4 | ||||
| 27. Round | 28/08/2021 | Yokohama F. Marinos | - | Kashima Antlers | 0:2 | ||||
| 28. Round | 11/09/2021 | Kashima Antlers | - | Avispa Fukuoka | 0:3 | ||||
| 29. Round | 18/09/2021 | Kashima Antlers | - | Gamba Osaka | 3:1 | ||||
| 32. Round | 22/09/2021 | Kashima Antlers | - | Kawasaki Frontale | 1:2 | ||||
| 30. Round | 26/09/2021 | Cerezo Osaka | - | Kashima Antlers | 1:2 |  |
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| 31. Round | 02/10/2021 | Kashima Antlers | - | Yokohama FC | 1:2 | ||||
| 33. Round | 23/10/2021 | FC Tokyo | - | Kashima Antlers | 1:2 | ||||
| 34. Round | 03/11/2021 | Sanfrecce Hiroshima | - | Kashima Antlers | 1:4 | ||||
| 35. Round | 07/11/2021 | Kashima Antlers | - | Urawa Red Diamonds | 1:0 | ||||
| 36. Round | 20/11/2021 | Kashima Antlers | - | Oita Trinita | 0:0 | ||||
| 37. Round | 27/11/2021 | Kashima Antlers | - | Sagan Tosu | 1:0 | ||||
| 38. Round | 04/12/2021 | Vegalta Sendai | - | Kashima Antlers | 0:1 |
Japan