| Polish National Tour | 2020/07/06 09:00 | Dembek, Michal v Dworak, Kacper | 6-4,6-0 |
| Polish National Tour | 2020/06/19 09:30 | Kacper Zuk v Dembek, Michal | 6-2,1-6,7-6 |
| Polish National Tour | 2020/06/18 07:00 | Dembek, Michal v Mikula, Michal | 7-6,6-4 |
| Marbello Cup Exhibition Series | 2020/06/05 07:00 | Terczynski, Mateusz v Dembek, Michal | 0-6,1-6 |
| Marbello Cup Exhibition Series | 2020/06/04 10:35 | Terczynski, Mateusz v Dembek, Michal | 2-6,0-6 |
| Marbello Cup Exhibition Series | 2020/06/03 13:05 | Daniel Michalski v Dembek, Michal | 7-6,6-0 |
| Marbello Cup Exhibition Series | 2020/06/03 08:50 | Zielinski, Jan v Dembek, Michal | 7-6,5-7,10-4 |
| Marbello Cup Exhibition Series | 2020/06/02 17:15 | Dembek, Michal v Kolasinski, Filip | 4-6,6-2,10-7 |
| Polish National Tour | 2020/06/23 10:00 | Piotr Grynkowski v Pawel Juszczak | 5-7,3-6 |
| Polish National Tour | 2020/06/22 07:00 | Piotr Grynkowski v Gajewski, Kamil | 6-3,6-3 |
| Polish National Tour | 2020/06/21 09:30 | Piotr Grynkowski v Walkow, Szymon | 5-7,6-3,7-6 |
| Polish National Tour | 2020/06/17 07:00 | Piotr Grynkowski v Aleksander Orlikowski | 7-5,6-1 |
| Trnava, Singles Main, M-ITF-SVK-03A | 2020/02/26 12:50 | Piotr Grynkowski v Satral, Jan | 4-6,2-6 |
| Trnava, Singles Main, M-ITF-SVK-03A | 2020/02/25 09:00 | Mammetgulyyev, Isa v Piotr Grynkowski | 3-6,2-6 |
| Trnava, Singles Main, M-ITF-SVK-03A | 2020/02/24 14:00 | Jiri Barnat v Piotr Grynkowski | 3-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/19 15:40 | Issei Okamura v Piotr Grynkowski | 6-3,7-5 |