Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Tbilisi | 2019/04/30 06:00 | Matuszewski, Piotr v Mikel Martinez | 6-3,6-4 |
| ITF - M15 Sharm El Sheikh | 2019/04/11 08:00 | Daniel Michalski v Matuszewski, Piotr | 6-2,6-1 |
| ITF - M15 Sharm El Sheikh | 2019/04/10 08:00 | Matuszewski, Piotr v Kiyamov, Timur | 6-4,6-7,7-6 |
| ITF - M15 Sharm El Sheikh | 2019/04/09 09:45 | Matuszewski, Piotr v Ruzgas, Marius | 7-6,6-3 |
| Oslo, Singles M-ITF-NOR-01A | 2019/03/05 09:00 | Stevens, Bart v Matuszewski, Piotr | 2-6,6-1,10-8 |
| Oslo, Singles M-ITF-NOR-01A | 2019/03/04 09:00 | Matuszewski, Piotr v Solberg, Christoffer | 7-6,6-4 |
| ITF M15 Kaarst | 2019/02/06 13:15 | Matuszewski, Piotr v Vadym Ursu | 6-7,0-6 |
| ITF M15 Kaarst | 2019/02/04 16:30 | de Rossi, Marco v Matuszewski, Piotr | 7-6,0-6,7-10 |
| ITF - M25 Sunderland | 2019/04/09 11:45 | Ryan Peniston v Bothwell, Peter | 6-3,7-5 |
| Bolton, Qualifications Simples M-ITF-GBR-03A | 2019/04/02 12:00 | Bothwell, Peter v Marc-Andrea Huesler | 6-4,4-6,6-7 |
| ITF M15 Quinta Do Lago | 2019/03/20 16:35 | Ugo Blanchet v Bothwell, Peter | 6-2,4-6,6-3 |
| Portimao, Singles Qualifying M-ITF-POR-16A | 2019/03/14 14:20 | Bothwell, Peter v Hoyt, Evan | 3-6,6-4,0-6 |
| Portimao, Singles Qualifying M-ITF-POR-16A | 2019/03/13 17:05 | Bothwell, Peter v Salgado, Afonso | 6-4,6-4 |
| ITF - M15 Monastir | 2019/02/21 11:00 | Bothwell, Peter v Louis Wessels | 6-4,3-6,6-7 |
| ITF - M15 Monastir | 2019/02/19 10:30 | Fabrizio Andaloro v Bothwell, Peter | 5-7,4-6 |
| ITF - M15 Monastir | 2019/02/14 10:40 | Bothwell, Peter v Bondarevskiy, Yan | 4-6,4-6 |