| Hellas Open | 2019/08/09 12:30 | Gergely Krausz v Mateusz Dubowski | L | 2-0 |
| Litauen - Int. - Kval | 2019/06/07 06:00 | Brian Holtschke v Mateusz Dubowski | W | 0-2 |
| Lettland - 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 |
| Latvia Int. Qual | 2019/05/30 15:00 | Tony Lindelof v Mateusz Dubowski | W | 0-2 |
| Polish Open - Kval | 2019/03/28 11:00 | Mateusz Dubowski v Antonio Li | W | 2-0 |
| Swiss Open - Damdubbel - Kval | 2019/02/27 07:00 | Mateusz Dubowski v Andreas Hoffmann | W | 2-0 |
| Swiss Open - Damdubbel - Kval | 2017/09/27 14:10 | Adi Pratama v Mateusz Dubowski | L | 2-1 |
| Litauen - Int. - Kval | 2019/06/06 14:30 | Oleksandr Kolesnik v Axel Henrik Parkhøi | L | 0-2 |
| Litauen - Int. - Kval | 2019/06/06 10:05 | Oleksandr Kolesnik v Laurynas Borusas | W | 2-0 |
| Swiss Open - Damdubbel - Kval | 2018/05/10 09:15 | Julian Edhofer v Oleksandr Kolesnik | L | 2-0 |
| Giraldilla Int. - Mixed dubbel | 2017/09/07 11:00 | Glib Beketov v Oleksandr Kolesnik | W | 1-2 |
| Giraldilla Int. - Mixed dubbel | 2017/09/07 08:30 | Khaitmurat Kulmatov v Oleksandr Kolesnik | W | 1-2 |