Stadium: Court 5 Round: 25 Ground: Clay
| 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 | Jeremy Jahn 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 |
| ITF M15 Metzingen | 2023/07/27 15:00 | Nicola Kuhn v Dominik Kellovsky | 6-3,6-2 |
| ITF M15 Koszalin | 2023/09/05 07:30 | Piotr Kusiewicz v Piotr Siekanowicz | 5-7,7-6,8-10 |
| ITF M15 Koszalin | 2023/09/04 07:30 | Piotr Siekanowicz v Michalis Sakellaridis | 7-6,4-6,10-8 |
| ITF M15 Szczawno | 2023/08/27 07:00 | Karol Filar v Piotr Siekanowicz | 6-4,6-4 |
| ITF M25 Bielsko Biala | 2023/08/14 12:00 | Matyas Cerny v Piotr Siekanowicz | 6-7,6-1,10-6 |
| ITF M25 Bielsko Biala | 2023/08/14 07:30 | Piotr Siekanowicz v Tomas Vaise | 6-4,4-6,10-4 |
| ITF M25 Lodz | 2023/08/08 11:05 | Piotr Grynkowski v Piotr Siekanowicz | 6-4,6-1 |
| ITF M25 Lodz | 2023/08/08 07:30 | Piotr Siekanowicz v Gabriel Matuszewski | 1-6,7-6,10-6 |
| ITF M25 Lodz | 2023/08/07 10:30 | Piotr Siekanowicz v Jakub Solarski | 6-0,6-2 |