| 16. Round | 20/02/2021 | Widzew Łódź | - | Korona Kielce | 2:0 |  |
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| 18. Round | 28/02/2021 | Korona Kielce | - | Chrobry Głogów | 2:2 | |
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| 19. Round | 06/03/2021 | GKS Jastrzębie | - | Korona Kielce | 2:0 | |
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| 21. Round | 19/03/2021 | Górnik Łęczna | - | Korona Kielce | 0:1 | |
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| 24. Round | 10/04/2021 | Korona Kielce | - | GKS Tychy '71 | 1:0 | |
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| 25. Round | 18/04/2021 | Odra Opole | - | Korona Kielce | 1:0 | |
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| 26. Round | 24/04/2021 | Korona Kielce | - | ŁKS Łódź | 1:2 | |
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| 27. Round | 28/04/2021 | OKS Stomil Olsztyn | - | Korona Kielce | 2:0 | |
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| 23. Round | 05/05/2021 | Bruk-Bet Termalica Nieciecza | - | Korona Kielce | 6:2 | ||||
| 29. Round | 08/05/2021 | Sandecja Nowy Sącz | - | Korona Kielce | 2:1 | ||||
| 30. Round | 15/05/2021 | Korona Kielce | - | GKS Bełchatów | 3:0 | ||||
| 31. Round | 23/05/2021 | Resovia Rzeszów | - | Korona Kielce | 1:1 | ||||
| 32. Round | 29/05/2021 | Korona Kielce | - | Arka Gdynia | 3:3 | ||||
| 33. Round | 04/06/2021 | Korona Kielce | - | Widzew Łódź | 1:1 | ||||
| 34. Round | 13/06/2021 | Radomiak Radom | - | Korona Kielce | 2:0 | |
Croatia