Stadium: Court 1 Round: 45 Ground: Hardcourt outdoor
| ITF M15 - Łódź | 2021/08/16 08:00 | Piotr Pawlak v Robertas Vrzesinski | 0-6,2-6 |
| ITF M15 - Łódź | 2021/08/15 11:00 | Sebastian Usiadek v Piotr Pawlak | 0-6,0-6 |
| ITF M15 - Gdynia | 2021/08/09 08:00 | Alexander Kotzen v Piotr Pawlak | 6-2,6-0 |
| ITF M15 - Gdynia | 2021/08/08 08:30 | Jonas Maier v Piotr Pawlak | 4-6,1-6 |
| ITF M25 - Grodzisk Mazowiecki | 2021/08/02 08:00 | Yujiro Onuma v Piotr Pawlak | 3-6,6-3,10-6 |
| Polish National Tour | 2021/07/10 09:30 | Piotr Pawlak v Dominik Nazaruk | 3-6,4-6 |
| ITF M15 Poprad | 2021/07/04 08:00 | Illya Beloborodko v Piotr Pawlak | 6-0,6-7,10-6 |
| ITF M25 - Wrocław | 2021/06/27 15:30 | Ignacio Monzon v Piotr Pawlak | 1-6,6-4,10-5 |
| UTR Pro Tennis Series - Florida | 2021/09/19 14:00 | Matthew Segura v Roman Postolka | 1-1 |
| UTR Pro Tennis Series - Florida | 2021/09/17 12:00 | Roman Postolka v Michal Schmid | 5-7,1-5 |
| UTR Pro Tennis Series - Florida | 2021/09/15 12:00 | Nikolay Sysoev v Roman Postolka | 2-6,2-6 |
| UTR Pro Tennis Series - Florida | 2021/09/14 16:30 | Omar Maldonado v Roman Postolka | 0-6,3-5 |
| UTR Pro Tennis Series - Florida | 2021/09/12 12:00 | Rowland Phillips v Roman Postolka | 7-6,6-1 |
| UTR Pro Tennis Series - Florida | 2021/09/11 16:30 | Roman Postolka v Michal Lusovsky | 6-2,7-5 |
| UTR Pro Tennis Series - Florida | 2021/09/10 18:30 | Jacob Perkins v Roman Postolka | 3-6,1-6 |
| UTR Pro Tennis Series - Florida | 2021/09/09 14:30 | Kiranpal Pannu v Roman Postolka | 6-1,6-3 |