| 6. Round | 15/09/2017 | 1. FC Union Berlin | - | Eintracht Braunschweig | 1:1 | ||||
| 11. Round | 21/10/2017 | 1. FC Union Berlin | - | SpVgg Greuther Fürth | 3:1 | ||||
| 12. Round | 29/10/2017 | MSV Duisburg | - | 1. FC Union Berlin | 1:1 | ||||
| 13. Round | 04/11/2017 | 1. FC Union Berlin | - | FC St. Pauli | 1:0 | ||||
| 15. Round | 24/11/2017 | 1. FC Union Berlin | - | SV Darmstadt 98 | 3:3 |  |
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| 17. Round | 09/12/2017 | 1. FC Union Berlin | - | Dynamo Dresden | 0:1 | ||||
| 25. Round | 02/03/2018 | 1. FC Kaiserslautern | - | 1. FC Union Berlin | 4:3 | ||||
| 26. Round | 11/03/2018 | 1. FC Union Berlin | - | Erzgebirge Aue | 0:0 | ||||
| 27. Round | 17/03/2018 | 1. FC Union Berlin | - | Jahn Regensburg | 2:2 | ||||
| 28. Round | 01/04/2018 | SpVgg Greuther Fürth | - | 1. FC Union Berlin | 2:1 | ||||
| 29. Round | 07/04/2018 | 1. FC Union Berlin | - | MSV Duisburg | 0:0 | ||||
| 30. Round | 14/04/2018 | FC St. Pauli | - | 1. FC Union Berlin | 0:1 | ||||
| 31. Round | 21/04/2018 | 1. FC Union Berlin | - | 1. FC Heidenheim 1846 | 1:1 | ||||
| 32. Round | 28/04/2018 | SV Darmstadt 98 | - | 1. FC Union Berlin | 3:1 | ||||
| 33. Round | 06/05/2018 | 1. FC Union Berlin | - | VfL Bochum | 3:1 | |
Germany