Estadio: Court 4 Round: 54 Ground: Hardcourt indoor
| ITF M25 Estocolmo | 2019/09/23 09:00 | Bastien Presuhn v Elmer Moller | 3-6,2-6 |
| ITF M25 Estocolmo | 2019/09/23 09:00 | Daniel Svensson v Piotr Matuszewski | 5-7,5-7 |
| ITF M15 Varna | 2019/09/10 08:00 | Quentin Folliot v Piotr Matuszewski | 6-2,6-3 |
| ITF M15 Haren | 2019/08/28 11:20 | Juan Ignacio Galarza v Piotr Matuszewski | 6-2,6-4 |
| ITF M15 Haren | 2019/08/27 09:00 | Piotr Matuszewski v Tom Clavel | 4-6,6-1,10-2 |
| ITF M15 Haren | 2019/08/26 11:30 | Piotr Matuszewski v Mats Hermans | 6-4,2-6,11-9 |
| ITF M25 Poznan | 2019/08/21 10:00 | Piotr Matuszewski v Filip Kolasinski | 2-6,6-4,5-7 |
| ITF M25 Bydgoszcz | 2019/08/15 08:00 | Camilo Ugo Carabelli v Piotr Matuszewski | 6-3,6-2 |
| ITF M25 Bydgoszcz | 2019/08/14 09:45 | Dominik Recek v Piotr Matuszewski | 4-6,6-1,2-6 |