Stadium: Court Central Round: 29 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2023/10/28 08:30 | Guido Ivan Justo v Olaf Pieczkowski | 6-1,6-7,3-6 |
| ITF M15 Monastir | 2023/10/27 08:30 | Adrien Gobat v Olaf Pieczkowski | 4-6,5-7 |
| ITF M15 Monastir | 2023/10/26 08:30 | Louis Tessa v Olaf Pieczkowski | 2-6,6-7 |
| ITF M15 Monastir | 2023/10/25 12:30 | Yuta Kikuchi v Olaf Pieczkowski | 6-7,4-6 |
| ITF M15 Doha | 2023/10/12 13:00 | Marat Sharipov v Olaf Pieczkowski | 6-7,6-2,6-2 |
| ITF M15 Doha | 2023/10/09 15:10 | Mashari Nawaf v Olaf Pieczkowski | 1-6,1-6 |
| ITF M15 Doha | 2023/10/06 12:55 | Coleman Wong v Olaf Pieczkowski | 7-6,6-3 |
| ITF M15 Doha | 2023/10/05 14:20 | Zach Stephens v Olaf Pieczkowski | 3-6,3-6 |
| ITF M15 Monastir | 2023/10/28 08:30 | Constantin Bittoun Kouzmine v Alberto Barroso Campos | 6-7,2-6 |
| ITF M15 Monastir | 2023/10/27 08:30 | Adrian Oetzbach v Alberto Barroso Campos | 3-6,2-6 |
| ITF M15 Monastir | 2023/10/26 08:30 | Ye Hongyu v Alberto Barroso Campos | 1-6,3-6 |
| ITF M15 Monastir | 2023/10/24 10:20 | Fabien Salle v Alberto Barroso Campos | 4-6,4-6 |
| ITF M15 Monastir | 2023/10/21 08:30 | Mohamed Aziz Dougaz v Alberto Barroso Campos | 7-6,6-1 |
| ITF M15 Monastir | 2023/10/20 08:30 | Alberto Barroso Campos v Michal Krajci | 6-1,6-1 |
| ITF M15 Monastir | 2023/10/19 08:00 | Alberto Barroso Campos v Luca Fantini | 6-1,6-3 |
| ITF M15 Monastir | 2023/10/17 09:40 | Alberto Barroso Campos v Marc Ros Mesas | 6-3,6-2 |