Stadium: Court 3 Round: 44 Ground: Clay
| ITF M15 Szczawno | 2023/08/28 08:30 | Philipp Pavlenko v Fryderyk Lechno-Wasiutynski | 4-6,1-6 |
| ITF M15 Szczawno | 2023/08/27 09:30 | Fryderyk Lechno-Wasiutynski v Andy Allen | 6-2,6-2 |
| ITF M25 Poznan | 2023/08/23 11:50 | Fryderyk Lechno-Wasiutynski v Tommaso Compagnucci | 3-6,2-6 |
| ITF M25 Bielsko Biala | 2023/08/16 10:40 | Fryderyk Lechno-Wasiutynski v Vladyslav Orlov | 6-7,2-6 |
| ITF M25 Lodz | 2023/08/09 15:50 | Jasza Szajrych v Fryderyk Lechno-Wasiutynski | 7-5,6-2 |
| ITF M15 Wroclaw | 2023/06/28 09:40 | Fryderyk Lechno-Wasiutynski v Matthew William Donald | 6-4,3-6,4-6 |
| ITF M25 Poprad | 2023/06/20 08:00 | Patrik Rikl v Fryderyk Lechno-Wasiutynski | 6-3,6-1 |
| ITF M15 Szczawno | 2023/08/28 07:30 | Karol Filar v Federico Marchetti | 6-3,4-6,10-4 |
| ITF M15 Szczawno | 2023/08/27 07:00 | Karol Filar v Piotr Siekanowicz | 6-4,6-4 |
| ITF M25 Lodz | 2023/08/07 10:30 | Yann Wojcik v Karol Filar | 6-3,6-4 |
| ITF M15 Nyiregyhaza | 2023/06/07 11:00 | Luca Wiedenmann v Karol Filar | 6-2,6-2 |
| ITF M15 Nyiregyhaza | 2023/06/05 13:30 | Sean Hess v Karol Filar | 6-1,3-6,13-15 |
| ITF M15 Nyiregyhaza | 2023/06/05 09:30 | Karol Filar v Benjamin Denis Alarcon | 6-0,6-3 |
| ITF M15 Kursumlijska Banja | 2023/04/24 10:35 | Sergei Pogosian v Karol Filar | 7-5,6-3 |
| ITF M15 Kursumlijska Banja | 2023/04/23 09:00 | Karol Filar v Dmitrii Vasilev | 6-1,4-6,12-10 |