| 24. Round | 24/02/2018 | FC Hertha Wiesbach | - | FV 07 Diefflen | 1:2 |  |
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| 26. Round | 10/03/2018 | FK Pirmasens | - | FV 07 Diefflen | 0:2 | ||||
| 28. Round | 24/03/2018 | SV Morlautern | - | FV 07 Diefflen | 1:5 | ||||
| 29. Round | 27/03/2018 | FV 07 Diefflen | - | SC 07 Idar-Oberstein | 4:1 |  |
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| 31. Round | 07/04/2018 | FV 07 Diefflen | - | Rot-Weiß Koblenz | 2:1 | ||||
| 32. Round | 14/04/2018 | FV Dudenhofen | - | FV 07 Diefflen | 0:6 | ||||
| 25. Round | 17/04/2018 | FV 07 Diefflen | - | FC 08 Homburg | 2:0 | ||||
| 33. Round | 21/04/2018 | FV 07 Diefflen | - | FSV Salmrohr | 4:1 | ||||
| 35. Round | 05/05/2018 | FSV Jägersburg | - | FV 07 Diefflen | 2:2 | ||||
| 36. Round | 12/05/2018 | FV 07 Diefflen | - | FV Eppelborn | 7:1 | ||||
| 37. Round | 19/05/2018 | Saar 05 Saarbrücken | - | FV 07 Diefflen | 2:3 | ||||
| 38. Round | 26/05/2018 | FV 07 Diefflen | - | FC Karbach | 5:4 |
Germany