Stadium: Court 5 Round: 26 Ground: Hardcourt indoor
| ITF M15 Trier | 2023/08/22 11:00 | Kai Lemstra v Adrian Oetzbach | 7-6,6-3 |
| ITF M15 Uberlingen | 2023/08/18 11:30 | Arthur Nagel v Adrian Oetzbach | 6-1,6-4 |
| ITF M15 Uberlingen | 2023/08/17 13:40 | Adrian Oetzbach v Luca Wiedenmann | 6-2,7-5 |
| ITF M15 Uberlingen | 2023/08/16 09:40 | Philip Florig v Adrian Oetzbach | 2-6,7-5,5-7 |
| Challenger Meerbusch | 2023/08/06 15:45 | Tibo Colson v Adrian Oetzbach | 7-6,7-6 |
| ITF M15 Eindhoven | 2023/08/05 09:00 | Elmer Moller v Adrian Oetzbach | 7-6,6-7,6-7 |
| ITF M15 Eindhoven | 2023/08/04 10:00 | Stijn Paardekooper v Adrian Oetzbach | 3-6,6-3,2-6 |
| ITF M15 Eindhoven | 2023/08/03 09:00 | Jurriaan Bol v Adrian Oetzbach | 3-6,3-6 |
| ITF M15 Kottingbrunn | 2023/08/16 11:45 | Bor Artnak v Milos Karol | 7-5,6-3 |
| ITF M25 Lodz | 2023/08/09 09:20 | Milos Karol v Olaf Pieczkowski | 6-3,2-6,3-6 |
| ITF M25 Kramsach | 2023/07/26 10:00 | Sebastian Prechtel v Milos Karol | 7-5,7-6 |
| ITF M25 Telfs | 2023/07/20 10:35 | Milos Karol v Sandro Kopp | 3-6,3-6 |
| ITF M25 Telfs | 2023/07/19 12:20 | Gustaf Strom v Milos Karol | 6-7,3-6 |
| Challenger Salzburg | 2023/07/09 10:10 | Milos Karol v Vladyslav Orlov | 7-5,3-6,1-6 |
| ITF M25 Poprad | 2023/06/22 08:00 | Lukas Palovic v Milos Karol | 2-6,6-3,6-4 |
| ITF M25 Poprad | 2023/06/21 09:55 | Milos Karol v Alibek Kachmazov | 7-5,6-4 |