| 5. Round | 29/08/2023 | 1. FSV Mainz 05 II | - | VfR Aalen | 1:1 | ||||
| 6. Round | 03/09/2023 | Eintracht Frankfurt II | - | 1. FSV Mainz 05 II | 6:1 | ||||
| 13. Round | 14/10/2023 | 1. FSV Mainz 05 II | - | FC-Astoria Walldorf | 1:2 | ||||
| 14. Round | 21/10/2023 | SGV Freiberg | - | 1. FSV Mainz 05 II | 1:2 | ||||
| 18. Round | 17/11/2023 | 1. FSV Mainz 05 II | - | Hessen Kassel | 4:1 | ||||
| 23. Round | 09/03/2024 | 1. FSV Mainz 05 II | - | Eintracht Frankfurt II | 0:1 | ||||
| 24. Round | 17/03/2024 | 1899 Hoffenheim II | - | 1. FSV Mainz 05 II | 2:0 | ||||
| 29. Round | 14/04/2024 | 1. FSV Mainz 05 II | - | VfB Stuttgart II | 1:1 |  |
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| 30. Round | 20/04/2024 | FC-Astoria Walldorf | - | 1. FSV Mainz 05 II | 4:1 | ||||
| 31. Round | 27/04/2024 | 1. FSV Mainz 05 II | - | SGV Freiberg | 0:2 | ||||
| 32. Round | 05/05/2024 | FC 08 Homburg | - | 1. FSV Mainz 05 II | 1:2 |  |
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| 33. Round | 11/05/2024 | 1. FSV Mainz 05 II | - | Kickers Offenbach | 3:0 | ||||
| 34. Round | 18/05/2024 | TuS Koblenz | - | 1. FSV Mainz 05 II | 1:3 |
Germany
Serbia