Stadium: Court 3 Round: 44 Ground: Clay
| ITF M15 Szczawno | 2023/08/28 09:40 | Piotr Kusiewicz v Marcel Dzielo | 6-1,7-5 |
| ITF M25 Poznan | 2023/08/21 12:55 | Przemyslaw Michocki v Piotr Kusiewicz | 6-4,6-2 |
| ITF M25 Bielsko Biala | 2023/08/14 10:30 | Piotr Kusiewicz v Andrea Meduri | 1-6,2-6 |
| ITF M25 Lodz | 2023/08/07 07:30 | Piotr Kusiewicz v Egor Baklanov | 7-6,5-7,8-10 |
| ITF M25 Kramsach | 2023/07/24 09:00 | Piotr Kusiewicz v Ivan Kremenchutskyi | 2-6,1-6 |
| ITF M25 Kramsach | 2023/07/23 15:00 | Piotr Kusiewicz v Elias Sumann | 6-3,3-6,10-5 |
| ITF M25 Kramsach | 2023/07/23 07:00 | Piotr Kusiewicz v Adam Blecha | 6-2,6-3 |
| ITF M15 Wroclaw | 2023/06/25 09:00 | Aleksander Orlikowski v Piotr Kusiewicz | 6-3,6-2 |
| ITF M25 Poznan | 2023/08/22 09:00 | Alan Bojarski v Gabriel Matuszewski | 6-4,7-5 |
| ITF M25 Poznan | 2023/08/21 13:20 | Marcel Dzielo v Gabriel Matuszewski | 1-6,2-6 |
| ITF M25 Bielsko Biala | 2023/08/14 14:30 | Juliusz Bienkiewicz v Gabriel Matuszewski | 6-1,6-2 |
| ITF M25 Bielsko Biala | 2023/08/14 09:00 | Richard Antoni v Gabriel Matuszewski | 4-6,3-6 |
| 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 | Dawid Wisniewski v Gabriel Matuszewski | 1-6,4-6 |
| ITF M15 Eindhoven | 2023/07/30 10:30 | Brian Bozemoj v Gabriel Matuszewski | 6-2,4-6,10-8 |
| ITF M15 Vejle | 2023/07/25 07:00 | Jack Karlsson Winstrand v Gabriel Matuszewski | 6-2,6-4 |