| 16. Round | 30/09/2017 | 1. FC Heidenheim 1846 [Youth B] | - | 1. FSV Mainz 05 [Youth B] | 2:1 | ||||
| 8. Round | 14/10/2017 | 1. FSV Mainz 05 [Youth B] | - | VfB Stuttgart [Youth B] | 3:2 |  |
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| 9. Round | 21/10/2017 | SV 07 Elversberg [Youth B] | - | 1. FSV Mainz 05 [Youth B] | 0:4 | ||||
| 10. Round | 28/10/2017 | 1. FSV Mainz 05 [Youth B] | - | 1899 Hoffenheim [Youth B] | 3:1 | ||||
| 11. Round | 04/11/2017 | Stuttgarter Kickers [Youth B] | - | 1. FSV Mainz 05 [Youth B] | 1:3 | ||||
| 12. Round | 18/11/2017 | 1. FSV Mainz 05 [Youth B] | - | FC Augsburg [Youth B] | 5:0 | ||||
| 13. Round | 25/11/2017 | SC Freiburg [Youth B] | - | 1. FSV Mainz 05 [Youth B] | 1:8 |  |
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| 15. Round | 09/12/2017 | 1. FSV Mainz 05 [Youth B] | - | SpVgg Unterhaching [Youth B] | 3:0 | ||||
| 22. Round | 14/04/2018 | 1. FSV Mainz 05 [Youth B] | - | SV 07 Elversberg [Youth B] | 5:1 |
Germany