All countries
| Final | Omiya Ardija | Kochi United | 2:1 (0:0, 2:1) | details | 06.06.2026 | |||
| Semi-finals | Yokohama FC | Omiya Ardija | 2:1 (1:0, 1:1) | details | 30.05.2026 | |||
| 18. Round | Gifu | Omiya Ardija | 0:2 (0:1, 0:1) | details | 23.05.2026 | |||
| 17. Round | Omiya Ardija | Nagano | 1:2 (0:0, 1:2) | details | 17.05.2026 | |||
| 16. Round | Hokkaido Consadole Sapporo | Omiya Ardija | 4:3 (3:1, 1:2) | details | 09.05.2026 | |||
| 15. Round | Omiya Ardija | Iwaki | 3:2 (2:1, 1:1) | details | 06.05.2026 | |||
| 14. Round | Fukushima Utd | Omiya Ardija | 1:2 (0:0, 1:2) | details | 03.05.2026 | |||
| 13. Round | Omiya Ardija | Kofu | 1:2 (0:2, 1:0) | details | 29.04.2026 | |||
| 12. Round | Fujieda MYFC | Omiya Ardija | 1:2 AfP (0:0, 1:1, 3:5) | details | 25.04.2026 | |||
| 11. Round | Omiya Ardija | Iwata | 1:2 (1:0, 0:2) | details | 18.04.2026 | |||
| 10. Round | Yamaga | Omiya Ardija | 4:1 (3:1, 1:0) | details | 12.04.2026 | |||
| 9. Round | Omiya Ardija | Gifu | 3:0 (3:0, 0:0) | details | 04.04.2026 | |||
| 8. Round | Kofu | Omiya Ardija | 2:1 (2:0, 0:1) | details | 28.03.2026 | |||
| 7. Round | Iwata | Omiya Ardija | 1:4 (0:2, 1:2) | details | 21.03.2026 | |||
| 6. Round | Omiya Ardija | Fujieda MYFC | 1:2 (0:1, 1:1) | details | 14.03.2026 | |||
| 5. Round | Iwaki | Omiya Ardija | 2:1 AfP (0:0, 1:1, 5:4) | details | 07.03.2026 | |||
| 4. Round | Nagano | Omiya Ardija | 1:2 (0:0, 1:2) | details | 28.02.2026 | |||
| 3. Round | Omiya Ardija | Fukushima Utd | 6:0 (2:0, 4:0) | details | 21.02.2026 | |||
| 2. Round | Omiya Ardija | Hokkaido Consadole Sapporo | 3:2 (1:1, 2:1) | details | 14.02.2026 | |||
| 1. Round | Omiya Ardija | Yamaga | 2:1 (2:0, 0:1) | details | 07.02.2026 | |||
| Omiya Ardija | V-Varen Nagasaki | 0:2 | details | 17.01.2026 | ||||
| Semi-finals | Chiba | Omiya Ardija | 4:3 (0:2, 4:1) | details | 07.12.2025 | |||
| 38. Round | Renofa Yamaguchi | Omiya Ardija | 3:2 (1:1, 2:1) | details | 29.11.2025 | |||
| 37. Round | Omiya Ardija | Tokushima | 1:2 (1:2, 0:0) | details | 23.11.2025 | |||
| 36. Round | Mito | Omiya Ardija | 0:2 (0:0, 0:2) | details | 09.11.2025 | |||
| 35. Round | Omiya Ardija | Blaublitz | 5:0 (2:0, 3:0) | details | 02.11.2025 | |||
| 34. Round | Montedio Yamagata | Omiya Ardija | 2:2 (1:0, 1:2) | details | 26.10.2025 | |||
| 33. Round | Omiya Ardija | Fujieda MYFC | 1:0 (1:0, 0:0) | details | 18.10.2025 | |||
| 32. Round | Vegalta Sendai | Omiya Ardija | 1:2 (0:1, 1:1) | details | 04.10.2025 | |||
| 31. Round | Iwata | Omiya Ardija | 3:4 (2:1, 1:3) | details | 27.09.2025 | |||
| 30. Round | Omiya Ardija | Imabari | 2:3 (2:1, 0:2) | details | 20.09.2025 | |||
| 29. Round | Omiya Ardija | V-Varen Nagasaki | 1:2 (1:2, 0:0) | details | 13.09.2025 | |||
| 28. Round | Hokkaido Consadole Sapporo | Omiya Ardija | 1:0 (1:0, 0:0) | details | 30.08.2025 | |||
| 27. Round | Omiya Ardija | Kumamoto | 1:0 (0:0, 1:0) | details | 23.08.2025 | |||
| 26. Round | Ehime | Omiya Ardija | 0:3 (0:1, 0:2) | details | 17.08.2025 | |||
| 25. Round | Omiya Ardija | Chiba | 0:1 (0:0, 0:1) | details | 09.08.2025 | |||
| 24. Round | Toyama | Omiya Ardija | 0:2 (0:1, 0:1) | details | 02.08.2025 | |||
| 23. Round | Kofu | Omiya Ardija | 1:0 (0:0, 1:0) | details | 12.07.2025 | |||
| 22. Round | Omiya Ardija | Iwaki | 1:2 (1:0, 0:2) | details | 05.07.2025 | |||
| 21. Round | Oita Trinita | Omiya Ardija | 0:0 (0:0, 0:0) | details | 28.06.2025 | |||
| 20. Round | Omiya Ardija | Sagan Tosu | 0:0 (0:0, 0:0) | details | 21.06.2025 | |||
| 19. Round | V-Varen Nagasaki | Omiya Ardija | 3:3 (1:2, 2:1) | details | 15.06.2025 | |||
| 17. Round | Omiya Ardija | Ehime | 1:1 (0:0, 1:1) | details | 08.06.2025 | |||
| Omiya Ardija | Tochigi SC | 2:0 (0:0, 2:0) | details | 01.06.2025 | ||||
| 18. Round | Omiya Ardija | Iwata | 2:2 (1:1, 1:1) | details | 31.05.2025 | |||
| 1/64-finals | Omiya Ardija | Tsukuba Univ. | 0:1 (0:1, 0:0) | details | 25.05.2025 | |||
| 16. Round | Fujieda MYFC | Omiya Ardija | 0:1 (0:0, 0:1) | details | 17.05.2025 | |||
| 15. Round | Omiya Ardija | Vegalta Sendai | 3:0 (2:0, 1:0) | details | 10.05.2025 | |||
| 14. Round | Chiba | Omiya Ardija | 1:2 (1:1, 0:1) | details | 06.05.2025 | |||
| 13. Round | Omiya Ardija | Toyama | 2:2 (1:1, 1:1) | details | 03.05.2025 | |||