Stadion: Court 5 Round: 26 Ground: Clay
| ITF - M15 - Meerbusch | 2022/05/06 09:20 | Olaf Pieczkowski v Jonathan Mridha | 6-4,3-6,5-7 |
| ITF - M15 - Szczawno | 2023/08/30 07:00 | Olaf Pieczkowski v Alan Bojarski | 6-0,6-2 |
| ITF - M25 - Posen | 2023/08/23 13:45 | Olaf Pieczkowski v Viacheslav Bielinskyi | 6-3,3-6,2-6 |
| ITF - M25 - Bielsko Biala | 2023/08/18 08:30 | Juan Bautista Torres v Olaf Pieczkowski | 6-3,6-2 |
| ITF - M25 - Bielsko Biala | 2023/08/17 08:30 | Olaf Pieczkowski v Daniel Siniakov | 7-5,6-2 |
| ITF - M25 - Bielsko Biala | 2023/08/16 09:00 | Ondrej Horak v Olaf Pieczkowski | 6-3,1-6,0-6 |
| ITF - M25 - Łódź | 2023/08/10 10:30 | Daniel Paty v Olaf Pieczkowski | 6-3,6-2 |
| ITF - M25 - Łódź | 2023/08/09 09:20 | Milos Karol v Olaf Pieczkowski | 6-3,2-6,3-6 |
| ITF - M25 - Den Haag | 2023/07/06 12:10 | Eric Vanshelboim v Olaf Pieczkowski | 6-0,6-4 |
| ITF - M15 - Szczawno | 2023/08/30 10:00 | Jonathan Mridha v Nikodem Barcik | 6-2,6-1 |
| ITF - M25 - Ystad | 2023/08/18 11:50 | Valentin Vacherot v Jonathan Mridha | 6-2,6-4 |
| ITF - M25 - Ystad | 2023/08/17 10:20 | Tommaso Carnevale-Miino v Jonathan Mridha | 4-6,2-6 |
| ITF - M25 - Ystad | 2023/08/16 08:45 | Gianluca Cadenasso v Jonathan Mridha | 3-6,4-6 |
| ITF - M15 - Xativa | 2023/08/04 17:00 | Jonathan Mridha v Diego A B Sanchez | 6-4,6-7,5-7 |
| ITF - M15 - Xativa | 2023/08/03 07:30 | Jonathan Mridha v Alberto C Sanchez | 6-3,3-6,6-3 |
| ITF - M15 - Xativa | 2023/08/02 07:30 | Jonathan Mridha v Dali Blanch | 6-1,6-2 |
| ITF - M15 - Vejle | 2023/07/25 09:00 | Jonathan Mridha v Niels Visker | 7-5,5-7,5-7 |