Stadium: Court 5 Round: 26 Ground: Clay
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2023/09/06 14:15 | Dominik Kellovsky v Piotr Siekanowicz | 6-4,7-5 |
| ITF M15 Vienna | 2023/09/02 11:00 | Milos Karol v Dominik Kellovsky | 6-2,6-3 |
| ITF M15 Vienna | 2023/09/01 09:45 | Luka Mikrut v Dominik Kellovsky | 4-6,0-6 |
| ITF M15 Vienna | 2023/08/31 09:35 | Janos Fekete v Dominik Kellovsky | 5-7,6-1,3-6 |
| ITF M15 Vienna | 2023/08/30 11:20 | Yvo Panak v Dominik Kellovsky | 7-5,3-6,6-7 |
| ITF M25 Poznan | 2023/08/23 14:05 | Jahn, Jeremy v Dominik Kellovsky | 7-5,6-4 |
| ITF M15 Kottingbrunn | 2023/08/16 10:00 | Dominik Kellovsky v Yannik Kelm | 6-7,3-6 |
| Challenger Liberec | 2023/07/30 14:40 | Michael Vrbensky v Dominik Kellovsky | 6-1,6-2 |
| Koszalin, Singles Qualifying M-ITF-POL-02A | 2023/09/06 11:10 | Philipp Pavlenko v Tim Ruehl | 0-6,7-6,2-6 |
| ITF M15 Allershausen | 2023/09/01 11:50 | Tim Ruehl v Nicola Kuhn | 6-3,6-7,3-6 |
| ITF M15 Allershausen | 2023/08/31 10:00 | Diego Dedura-Palomero v Tim Ruehl | 3-6,3-6 |
| ITF M15 Allershausen | 2023/08/30 12:40 | Tim Ruehl v Vincent Marysko | 6-4,6-0 |
| ITF M15 Allershausen | 2023/08/30 08:00 | Tim Ruehl v Erwin Troebinger | 6-1,6-1 |
| ITF - M15 Prijedor | 2023/05/19 11:20 | Petr Brunclik v Tim Ruehl | 6-7,6-4,10-7 |
| ITF - M15 Prijedor | 2023/05/19 07:00 | Tim Ruehl v Stefan Kostic | 6-1,6-1 |
| ITF - M15 Prijedor | 2023/05/17 14:00 | Corey Gaal v Tim Ruehl | 3-6,2-6 |