Stadium: Court 6 Round: 44 Ground: Clay
| ITF M25 Poznan | 2020/08/26 07:55 | Matuszewski, Piotr v Maciej Rajski | 3-6,6-7 |
| 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 M25 Prague | 2020/09/13 13:30 | Samosi, Peter v Lahky, Nikolas | 1-6,2-6 |
| ITF M25 Poznan | 2020/08/24 11:00 | Samosi, Peter v Lahky, Nikolas | 2-6,3-6 |
| ITF - M15 Sharm El Sheikh | 2019/11/17 11:30 | Samosi, Peter v Yuichiro Inui | 2-6,0-6 |
| ITF - M15 Sharm El Sheikh | 2019/11/10 08:00 | Luca Potenza v Samosi, Peter | 6-0,6-2 |
| ITF - M15 Sharm El Sheikh | 2019/11/04 09:00 | Samosi, Peter v Solomatin, Igor | 2-6,2-6 |
| ITF - M15 Sharm El Sheikh | 2019/11/03 08:00 | Elkamony, Anwar v Samosi, Peter | 1-6,1-6 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/10/06 12:30 | Samosi, Peter v Lima-Perez, Jeremias | 1-6,2-6 |
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/10/06 08:30 | Beccuzzi, Enrico v Samosi, Peter | 3-6,2-6 |