| 10. Round | 04/11/2023 | 1. FSV Mainz 05 [Youth] | - | 1. FC Heidenheim 1846 [Youth] | 2:0 | ||||
| 13. Round | 06/12/2023 | 1899 Hoffenheim [Youth] | - | 1. FSV Mainz 05 [Youth] | 1:1 | ||||
| 15. Round | 03/02/2024 | 1. FSV Mainz 05 [Youth] | - | FC Ingolstadt 04 [Youth] | 2:2 |  |
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| 16. Round | 11/02/2024 | 1. FC Kaiserslautern [Youth] | - | 1. FSV Mainz 05 [Youth] | 1:0 | ||||
| 17. Round | 18/02/2024 | 1. FSV Mainz 05 [Youth] | - | SpVgg Greuther Fürth [Youth] | 3:1 | ||||
| 18. Round | 24/02/2024 | SV Sandhausen [Youth] | - | 1. FSV Mainz 05 [Youth] | 0:3 | ||||
| 19. Round | 03/03/2024 | 1. FSV Mainz 05 [Youth] | - | FC Augsburg [Youth] | 2:0 | ||||
| 20. Round | 09/03/2024 | VfB Stuttgart [Youth] | - | 1. FSV Mainz 05 [Youth] | 1:2 | ||||
| 21. Round | 06/04/2024 | Bayern München [Youth] | - | 1. FSV Mainz 05 [Youth] | 2:3 |  |
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| 22. Round | 13/04/2024 | 1. FSV Mainz 05 [Youth] | - | Eintracht Frankfurt [Youth] | 2:5 |
Germany
Turkey