Estádio: Sostmeier Round: 25 Ground: Clay
| ITF - M15 Huy | 2023/08/22 09:00 | Stijn Slump v Maik Steiner | 7-5,6-7,6-4 |
| ITF - M15 Eupen | 2023/08/10 09:00 | Luca Wiedenmann v Maik Steiner | 3-6,6-3,6-1 |
| ITF - M15 Eupen | 2023/08/09 11:25 | Maik Steiner v Leopold Zima | 6-3,6-3 |
| ITF - M25 Wetzlar | 2023/08/04 15:25 | Maik Steiner v Orlando Luz | 4-6,2-6 |
| ITF - M25 Wetzlar | 2023/08/04 09:35 | Maik Steiner v Vincent Marysko | 6-2,6-1 |
| ITF - M25 Wetzlar | 2023/08/03 11:30 | Matteo Martineau v Maik Steiner | 3-6,6-3,1-6 |
| ITF - M15 Uslar | 2023/07/18 10:00 | Maik Steiner v Olle Wallin | 6-7,4-6 |
| ITF - M15 Rabat | 2023/06/14 12:40 | Maik Steiner v Matias Zukas | 4-6,3-6 |
| ITF - M15 Allershausen | 2023/08/30 08:00 | Gregor Ramskogler v Frederic Schlossmann | 4-6,4-6 |
| ITF - M15 Huy | 2023/08/21 08:35 | Andrej Krajcik v Frederic Schlossmann | 5-7,6-3,10-8 |
| ITF - M15 Antália | 2023/04/09 06:30 | Frederic Schlossmann v Louroi Martinez | 3-6,1-6 |
| ITF - M15 Antália | 2023/04/02 07:00 | Frederic Schlossmann v Marko Andrejic | 6-7,2-6 |
| ITF - M15 Antália | 2023/03/21 07:00 | Dax Donders v Frederic Schlossmann | 4-6,7-5,10-8 |
| ITF - M15 Antália | 2023/03/20 06:55 | Frederic Schlossmann v John Sperle | 6-4,6-3 |
| ITF - M15 Antália | 2023/03/19 07:00 | Maksim Tikhomirov v Frederic Schlossmann | 6-4,4-6,5-10 |
| ITF - M15 Antália | 2023/03/12 10:30 | Filippo Speziali v Frederic Schlossmann | 7-6,7-6 |