Stadium: Court 1 Round: 44 Ground: Hardcourt outdoor
| ITF - M15 Sharm El Sheikh | 2019/10/28 10:00 | Matuszewski, Piotr v Presuhn, Bastien | 7-6,6-1 |
| ITF - M15 Sharm El Sheikh | 2019/10/23 10:30 | Bava, Haadin v Matuszewski, Piotr | 7-5,6-3 |
| ITF M25 Falun | 2019/09/30 09:40 | Matuszewski, Piotr v Gustafsson, Carl | 4-6,7-6,6-10 |
| ITF M25 Falun | 2019/09/29 11:00 | Matuszewski, Piotr v Galus, Piotr | 3-6,6-2,10-7 |
| Stockholm, Singles M-ITF-SWE-05A | 2019/09/24 10:35 | Elmer Moller v Matuszewski, Piotr | 6-7,6-2,10-8 |
| Stockholm, Singles M-ITF-SWE-05A | 2019/09/23 09:00 | Svensson, Daniel v Matuszewski, Piotr | 5-7,5-7 |
| Varna, Singles M-ITF-BUL-04A | 2019/09/10 08:00 | Quentin Folliot v Matuszewski, Piotr | 6-2,6-3 |
| ITF M15 Haren | 2019/08/28 11:20 | Galarza, Juan Ignacio v Matuszewski, Piotr | 6-2,6-4 |
| ITF - M15 Sharm El Sheikh | 2019/10/28 10:00 | Portmann, Kevin v Lukas H Lilleengen | 2-6,0-6 |
| ITF - M15 Sharm El Sheikh | 2019/10/23 11:40 | Kiyamov, Timur v Lukas H Lilleengen | 6-4,6-4 |
| ITF - M15 Sharm El Sheikh | 2019/10/22 08:00 | Every, Michael-John v Lukas H Lilleengen | 6-4,3-6,7-10 |
| ITF - M15 Sharm El Sheikh | 2019/10/21 08:00 | Bernabe, Arthur v Lukas H Lilleengen | 6-7,2-6 |
| ITF - M15 Sharm El Sheikh | 2019/10/20 10:00 | Hastings Fernandez Oro, Alejandro v Lukas H Lilleengen | 3-6,0-6 |
| ITF - M15 Antalya | 2019/10/02 10:30 | Peter Heller v Lukas H Lilleengen | 6-2,6-0 |
| ITF - M15 Antalya | 2019/10/01 07:00 | Lukas H Lilleengen v Bielinskyi, Oleksandr | 2-6,7-6,10-4 |
| ITF - M15 Antalya | 2019/09/30 07:30 | Lukas H Lilleengen v Brechemier, Thomas | 5-7,6-0,10-3 |