Estadio: Court 21 Round: 26 Ground: Clay
| ITF 15 Antalya | 2021/11/17 10:00 | Patrik Rikl v Olaf Pieczkowski | 1-6,6-7 |
| ITF 15 Antalya | 2021/11/09 07:00 | Olaf Pieczkowski v Lukas Neumayer | 6-7,5-7 |
| ITF 15 Antalya | 2021/11/03 11:20 | Olaf Pieczkowski v Juan Pablo Paz | 4-6,3-6 |
| ITF M15 Lódz | 2021/08/18 11:25 | Wojciech Marek v Olaf Pieczkowski | 5-7,6-4,6-1 |
| ITF M15 Gdynia | 2021/08/11 15:40 | Pol Toledo Bague v Olaf Pieczkowski | 6-4,6-0 |
| ITF M15 Gdynia | 2021/08/10 08:00 | Alexander Kotzen v Olaf Pieczkowski | 2-6,6-2,8-10 |
| ITF M15 Gdynia | 2021/08/09 08:00 | Olaf Pieczkowski v Millen Hurrion | 6-1,6-7,10-4 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Olaf Pieczkowski v Dominik Langmajer | 6-2,6-1 |
| ITF 15 Antalya | 2021/11/17 06:30 | Oleksandr Bielinskyi v Leonardo Malgaroli | 6-2,6-1 |
| ITF 15 Antalya | 2021/11/16 10:35 | Maik Steiner v Oleksandr Bielinskyi | 2-6,3-6 |
| ITF 15 Antalya | 2021/11/15 08:55 | Ezequiel Simonit v Oleksandr Bielinskyi | 6-2,2-6,3-10 |
| ITF 15 Antalya | 2021/11/14 06:30 | Ivan Kazakov v Oleksandr Bielinskyi | 7-5,1-6,5-10 |
| ITF 15 Antalya | 2021/11/11 08:20 | Oleksandr Bielinskyi v Ilya Snitari | 6-7,4-6 |
| ITF 15 Antalya | 2021/11/10 06:30 | Bogdan Bobrov v Oleksandr Bielinskyi | 4-6,1-6 |
| ITF 15 Antalya | 2021/11/09 08:15 | Ignacio Cuzzani v Oleksandr Bielinskyi | 6-3,1-6,6-10 |
| ITF 15 Antalya | 2021/11/08 12:45 | Gheorghe Claudiu Schinteie v Oleksandr Bielinskyi | 2-6,6-1,9-11 |