Stadium: Hard 21 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2023/09/17 08:00 | Rushil Khosla v Daniel Blazka | 6-2,6-0 |
| ITF M15 Monastir | 2023/09/10 08:00 | Daniel Blazka v Rafael Giotis | 2-6,0-6 |
| ITF M15 Monastir | 2023/08/27 08:00 | Daniel Blazka v Nicolas Philibert | 0-6,0-6 |
| ITF M15 Monastir | 2023/08/20 08:00 | Daniel Blazka v Imran Sibille | 2-6,2-6 |
| ITF M15 Monastir | 2023/08/14 15:30 | Daniel Blazka v Nikita Ianin | 3-6,4-6 |
| ITF M25 Heraklion | 2023/10/31 09:10 | Daniele Rapagnetta v Piotr Kusiewicz | 6-2,6-4 |
| ITF M25 Heraklion | 2023/10/30 09:30 | Andreas Loizas v Piotr Kusiewicz | 4-6,7-6,8-10 |
| ITF M15 Heraklion | 2023/10/22 09:30 | Piotr Kusiewicz v Vojtech Mares | 5-7,6-4,7-10 |
| ITF M15 Heraklion | 2023/10/16 07:00 | Piotr Kusiewicz v Benoit Torcq | 6-2,1-6,6-10 |
| ITF M15 Koszalin | 2023/09/06 07:30 | Valerio Perruzza v Piotr Kusiewicz | 6-1,6-4 |
| 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 09:00 | Piotr Kusiewicz v Alexander C Parker | 7-6,6-3 |
| ITF M15 Szczawno | 2023/08/28 17:45 | Piotr Kusiewicz v Gabriel Matuszewski | 6-4,3-6,5-10 |