Stadium: Court 6 Round: 44 Ground: Clay
| ITF M25 Poznan | 2020/08/26 07:55 | Piotr Matuszewski v Maciej Rajski | 3-6,6-7 |
| 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 M25 Prague | 2020/09/13 13:30 | Peter Samosi v Nikolas Lahky | 1-6,2-6 |
| ITF M25 Poznan | 2020/08/24 11:00 | Peter Samosi v Nikolas Lahky | 2-6,3-6 |
| ITF M15 Sharm El Sheikh | 2019/11/17 11:30 | Peter Samosi v Yuichiro Inui | 2-6,0-6 |
| ITF M15 Sharm El Sheikh | 2019/11/10 08:00 | Luca Potenza v Peter Samosi | 6-0,6-2 |
| ITF M15 Sharm El Sheikh | 2019/11/04 09:00 | Peter Samosi v Igor Solomatin | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2019/11/03 08:00 | Anwar Elkamony v Peter Samosi | 1-6,1-6 |
| ITF M15 Tabarka | 2019/10/06 12:30 | Peter Samosi v Jeremias Lima-Perez | 1-6,2-6 |
| ITF M15 Tabarka | 2019/10/06 08:30 | Enrico Becuzzi v Peter Samosi | 3-6,2-6 |