| Polish Int. - Kwal. | 2019/09/19 12:50 | Martin Bundgaard v Mateusz Dubowski | W | 0-2 |
| Polish Int. - Kwal. | 2019/09/19 09:20 | Mateusz Dubowski v Gasper Krivec | W | 2-0 |
| Belarus Int. Qual | 2019/08/30 07:40 | Mateusz Dubowski v Evgeny Chertilin | W | 2-0 |
| Belarus Int. Qual | 2019/08/29 11:00 | Mateusz Dubowski v Oleksandr Kolesnik | W | 2-0 |
| Hellas Open | 2019/08/09 12:30 | Gergely Krausz v Mateusz Dubowski | L | 2-0 |
| Lithuanian Int. - Kwal. | 2019/06/07 06:00 | Brian Holtschke v Mateusz Dubowski | W | 0-2 |
| Latvia Int. | 2019/05/31 16:30 | Aram Mahmoud v Mateusz Dubowski | L | 2-0 |
| Latvia Int. Qual | 2019/05/31 06:00 | Michael Giesinger v Mateusz Dubowski | W | 0-2 |
| Polish Int. - Kwal. | 2019/09/19 09:55 | Nikolaj Mangor v Yevhen Kobzar | W | 2-0 |