Stadium: Court 4 Round: 54 Ground: Clay
| ITF M25 Kassel | 2023/07/10 07:50 | Adrian Oetzbach v Samuel Rovai | 6-1,6-1 |
| ITF M25 Marburg | 2023/07/08 10:50 | Timo Stodder v Adrian Oetzbach | 6-1,6-4 |
| ITF M25 Marburg | 2023/07/07 12:30 | Adrian Oetzbach v Martin Krumich | 6-3,6-4 |
| ITF M25 Marburg | 2023/07/06 10:30 | Adrian Oetzbach v Buvaysar Gadamauri | 3-6,6-4,6-3 |
| ITF M25 Marburg | 2023/07/05 16:40 | Alex Barrena v Adrian Oetzbach | 6-7,5-7 |
| ITF M25 Marburg | 2023/07/04 08:00 | Adrian Oetzbach v Anthony Genov | 6-2,6-1 |
| ITF M15 Alkmaar | 2023/06/28 09:00 | Michiel de Krom v Adrian Oetzbach | 6-2,4-6,6-1 |
| ITF M15 Alkmaar | 2023/06/26 08:00 | Adrian Oetzbach v Tomi Van den Ham | 6-4,6-2 |
| ITF M25 Kassel | 2023/07/10 08:00 | Vincent Marysko v Oskar Jansson | 4-6,6-4,10-8 |
| ITF M25 Marburg | 2023/07/06 08:55 | Vincent Marysko v Dominik Recek | 2-6,3-6 |