| 17. Round | 12/01/2019 | Kozakken Boys | - | SVV Scheveningen | 2:3 |  |
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| 18. Round | 19/01/2019 | GVVV | - | Kozakken Boys | 0:1 | ||||
| 19. Round | 26/01/2019 | Amsterdamsche FC | - | Kozakken Boys | 1:1 | ||||
| 20. Round | 02/02/2019 | Kozakken Boys | - | VV Katwijk | 2:1 | ||||
| 21. Round | 09/02/2019 | Vitesse (J) | - | Kozakken Boys | 1:1 | ||||
| 22. Round | 16/02/2019 | Kozakken Boys | - | Rijnsburgse Boys | 2:1 | ||||
| 23. Round | 23/02/2019 | BVV Barendrecht | - | Kozakken Boys | 1:1 | ||||
| 24. Round | 09/03/2019 | Kozakken Boys | - | IJsselmeervogels | 5:0 | ||||
| 25. Round | 16/03/2019 | Sparta Rotterdam (J) | - | Kozakken Boys | 1:2 | ||||
| 26. Round | 23/03/2019 | Kozakken Boys | - | Excelsior Maassluis | 0:2 | ||||
| 27. Round | 30/03/2019 | De Treffers | - | Kozakken Boys | 0:1 | ||||
| 28. Round | 06/04/2019 | Kozakken Boys | - | Jong Almere City FC | 3:1 | ||||
| 29. Round | 13/04/2019 | Kozakken Boys | - | SV Spakenburg | 2:1 | ||||
| 30. Round | 20/04/2019 | FC Lienden | - | Kozakken Boys | 0:2 | ||||
| 31. Round | 04/05/2019 | Kozakken Boys | - | VV Sint Bavo | 2:2 | ||||
| 32. Round | 11/05/2019 | HHC Hardenberg | - | Kozakken Boys | 2:3 | ||||
| 33. Round | 18/05/2019 | Kozakken Boys | - | Koninklijke HFC | 1:2 |
Netherlands