Stadium: Court 4 Round: 29 Ground: Clay
| ITF M15 Szczawno | 2023/09/01 09:00 | Pieczkowski, Olaf v Jonas P Hartenstein | 6-2,6-2 |
| ITF M15 Szczawno | 2023/08/30 07:00 | Pieczkowski, Olaf v Bojarski, Alan | 6-0,6-2 |
| ITF M25 Poznan | 2023/08/23 13:45 | Pieczkowski, Olaf v Bielinskyi, Viacheslav | 6-3,3-6,2-6 |
| ITF M25 Bielsko Biala | 2023/08/18 08:30 | 토레스, 주안 바우티스타 v Pieczkowski, Olaf | 6-3,6-2 |
| ITF M25 Bielsko Biala | 2023/08/17 08:30 | Pieczkowski, Olaf v 시니아코브, 다니엘 | 7-5,6-2 |
| ITF M25 Bielsko Biala | 2023/08/16 09:00 | Ondrej Horak v Pieczkowski, Olaf | 6-3,1-6,0-6 |
| ITF M25 Lodz | 2023/08/10 10:30 | 파티, 다니엘 v Pieczkowski, Olaf | 6-3,6-2 |
| ITF M25 Lodz | 2023/08/09 09:20 | Karol, Milos v Pieczkowski, Olaf | 6-3,2-6,3-6 |
| ITF M15 Szczawno | 2023/09/01 10:35 | Szajrych, Jasza v Pawel Juszczak | 6-4,6-0 |
| ITF M15 Szczawno | 2023/08/31 13:30 | Rodriguez, Lorenzo Joaquin v Szajrych, Jasza | 3-6,6-1,1-6 |
| ITF M15 Szczawno | 2023/08/30 15:30 | Matuszewski, Gabriel v Szajrych, Jasza | 0-6,2-6 |
| ITF M25 Poznan | 2023/08/24 11:05 | 잔, 제레미 v Szajrych, Jasza | 6-2,7-6 |
| ITF M25 Poznan | 2023/08/23 10:00 | Szajrych, Jasza v 즈골라, 보리스 | 6-4,6-3 |
| ITF M25 Bielsko Biala | 2023/08/15 08:25 | Szajrych, Jasza v 바르나트, 지리 | 6-2,4-6,4-6 |
| ITF M25 Lodz | 2023/08/10 12:00 | Szajrych, Jasza v 파울슨, 안드루 | 1-6,3-6 |
| ITF M25 Lodz | 2023/08/09 15:50 | Szajrych, Jasza v Fryderyk Lechno-Wasiutynski | 7-5,6-2 |