Stadium: Central Court
| ITF Poland F6 | 2018/08/07 08:00 | Matuszewski, Piotr v Gajewski, Kamil | 6-3,4-6,6-4 |
| Polish National Tour | 2020/08/15 16:00 | Gajewski, Kamil v Borkowski, Mikolaj | 6-4,6-3 |
| Polish National Tour | 2020/08/15 07:30 | Gajewski, Kamil v Szmyrgala, Mikolaj | 6-3,6-2 |
| Polish National Tour | 2020/07/29 14:50 | Gajewski, Kamil v Kolasinski, Filip | 7-5,6-7,4-6 |
| Polish National Tour | 2020/07/24 08:00 | Gajewski, Kamil v Gabriel Matuszewski | 6-4,1-6,2-6 |
| Polish National Tour | 2020/07/16 08:30 | Kacper Zuk v Gajewski, Kamil | 6-2,6-3 |
| Polish National Tour | 2020/07/14 12:05 | Gajewski, Kamil v Panfil, Grzegorz | 6-7,6-3,6-2 |
| Polish National Tour | 2020/07/07 10:25 | Gajewski, Kamil v Daniel Michalski | 4-6,4-6 |
| Polish National Tour | 2020/06/22 07:00 | Piotr Grynkowski v Gajewski, Kamil | 6-3,6-3 |
| Polish National Tour | 2020/08/20 15:45 | Rudnicki, Grzegorz v Matuszewski, Piotr | 1-6,1-6 |
| Polish National Tour | 2020/08/20 10:20 | Matuszewski, Piotr v Pawel Juszczak | 3-6,7-6,7-6 |
| Polish National Tour | 2020/06/18 09:00 | Pawel Juszczak v Matuszewski, Piotr | 6-1,6-7,6-4 |
| Trnava, Singles Main, M-ITF-SVK-03A | 2020/02/24 14:00 | Kai Lemstra v Matuszewski, Piotr | 6-2,6-0 |
| ITF - M15 Sharm El Sheikh | 2020/02/19 14:10 | Hunter, Vaughn v Matuszewski, Piotr | 6-1,6-4 |
| ITF - M15 Sharm El Sheikh | 2020/02/18 08:00 | Moerani Bouzige v Matuszewski, Piotr | 2-6,7-6,8-10 |
| ITF - M15 Sharm El Sheikh | 2020/02/17 10:00 | Malesevic, Nemanja v Matuszewski, Piotr | 4-6,4-6 |
| ITF - M15 Sharm El Sheikh | 2020/02/11 08:00 | Oleksandr Ovcharenko v Matuszewski, Piotr | 6-3,6-3 |