| 27. Round | 22/07/2023 | FC Machida Zelvia | - | JEF United Chiba | 1:3 | ||||
| 28. Round | 29/07/2023 | JEF United Chiba | - | Renofa Yamaguchi | 4:0 |  |
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| 29. Round | 06/08/2023 | Tokushima Vortis | - | JEF United Chiba | 3:3 | ||||
| 30. Round | 12/08/2023 | Montedio Yamagata | - | JEF United Chiba | 1:0 | ||||
| 31. Round | 19/08/2023 | JEF United Chiba | - | Fujieda MyFC | 3:2 | |
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| 32. Round | 26/08/2023 | Júbilo Iwata | - | JEF United Chiba | 2:3 | |
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| 33. Round | 03/09/2023 | JEF United Chiba | - | Roasso Kumamoto | 1:0 | ||||
| 34. Round | 09/09/2023 | JEF United Chiba | - | Blaublitz Akita | 2:1 | |
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| 35. Round | 16/09/2023 | Tochigi SC | - | JEF United Chiba | 0:1 | ||||
| 36. Round | 23/09/2023 | JEF United Chiba | - | Vegalta Sendai | 3:1 | ||||
| 37. Round | 01/10/2023 | Fagiano Okayama | - | JEF United Chiba | 0:5 | |
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| 38. Round | 08/10/2023 | JEF United Chiba | - | Mito HollyHock | 1:1 | ||||
| 39. Round | 22/10/2023 | Tokyo Verdy | - | JEF United Chiba | 3:2 | |
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| 40. Round | 29/10/2023 | JEF United Chiba | - | Iwaki FC | 1:0 | ||||
| 41. Round | 05/11/2023 | Thespakusatsu Gunma | - | JEF United Chiba | 1:2 | ||||
| 42. Round | 12/11/2023 | JEF United Chiba | - | V-Varen Nagasaki | 1:3 |
Brazil