Stadium: Court 2 Round: 62 Ground: Clay
| Polish National Tour | 2020/08/21 11:55 | Kamil Gajewski v Piotr Matuszewski | 7-6,6-4 |
| Polish National Tour | 2020/08/20 15:45 | Grzegorz Rudnicki v Piotr Matuszewski | 1-6,1-6 |
| Polish National Tour | 2020/08/20 10:20 | Piotr Matuszewski v Pawel Juszczak | 3-6,7-6,7-6 |
| Polish National Tour | 2020/06/18 09:00 | Pawel Juszczak v Piotr Matuszewski | 6-1,6-7,6-4 |
| ITF M15 Trnava | 2020/02/24 14:00 | Kai Lemstra v Piotr Matuszewski | 6-2,6-0 |
| ITF M15 Sharm El Sheikh | 2020/02/19 14:10 | Vaughn Hunter v Piotr Matuszewski | 6-1,6-4 |
| ITF M15 Sharm El Sheikh | 2020/02/18 08:00 | Moerani Bouzige v Piotr Matuszewski | 2-6,7-6,8-10 |
| ITF M15 Sharm El Sheikh | 2020/02/17 10:00 | Nemanja Malesevic v Piotr Matuszewski | 4-6,4-6 |