Stadium: Court 1 Round: 25 Ground: Clay
| Polish National Tour | 2020/08/21 11:55 | Gajewski, Kamil v Matuszewski, Piotr | 7-6,6-4 |
| 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 M25 Poznan | 2020/08/25 08:00 | Maciej Rajski v Recek, Dominik | 6-0,6-1 |
| ITF M25 Poznan | 2020/08/24 08:00 | Maciej Rajski v Szic, Sandro | 6-2,6-2 |
| Polish National Tour | 2020/08/20 13:20 | Maciej Rajski v Orlikowski, Aleksander | 1-6,6-3,6-7 |
| Polish National Tour | 2020/08/20 10:30 | Maciej Rajski v Kwiatkowski, Adam | 6-2,6-2 |
| Polish National Tour | 2020/08/18 07:30 | Daniel Michalski v Maciej Rajski | 6-4,6-2 |
| Polish National Tour | 2020/08/16 10:25 | Maciej Rajski v Pawlak, Piotr | 6-3,6-4 |
| Polish National Tour | 2020/08/15 14:20 | Maciej Rajski v Nazaruk, Dominik | 6-2,6-3 |
| Polish National Tour | 2020/07/30 08:00 | Kacper Zuk v Maciej Rajski | 6-4,6-2 |