| European Team Championships | 02/13 17:30 | - | Sergey Sirant v Mateusz Dubowski | D | Retired | |
| European Team Championships | 02/12 19:00 | - | Leon Seiwald v Mateusz Dubowski | L | 2-1 | |
| European Team Championships | 02/11 09:00 | - | Joshua Magee v Mateusz Dubowski | W | 1-2 | |
| Polish Int. | 09/20 13:40 | 5 | Daniel Nikolov v Mateusz Dubowski | L | 2-1 | |
| Polish Int. Qual | 09/19 16:20 | - | Mateusz Dubowski v Nikolaj Mangor | W | 2-0 | |
| Polish Int. Qual | 09/19 12:50 | - | Martin Bundgaard v Mateusz Dubowski | W | 0-2 | |
| Polish Int. Qual | 09/19 09:20 | - | Mateusz Dubowski v Gasper Krivec | W | 2-0 | |
| Belarus Int. Qual | 08/30 07:40 | - | Mateusz Dubowski v Evgeny Chertilin | W | 2-0 | |
| Belarus Int. Qual | 08/29 11:00 | - | Mateusz Dubowski v Oleksandr Kolesnik | W | 2-0 | |
| Belarus Int. Qual | 08/29 09:10 | - | Mateusz Dubowski v Samuel Hsiao | W |
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| Hellas Open | 08/09 12:30 | - | Gergely Krausz v Mateusz Dubowski | L | 2-0 | |
| Hellas Open Qual | 08/08 10:15 | - | Colin Hammarberg v Mateusz Dubowski | D | Retired | |
| Lithuanian Int. Qual | 06/07 06:00 | - | Brian Holtschke v Mateusz Dubowski | W | 0-2 | |
| Latvia Int. | 05/31 16:30 | - | Aram Mahmoud v Mateusz Dubowski | L | 2-0 | |
| Latvia Int. Qual | 05/31 06:00 | - | Michael Giesinger v Mateusz Dubowski | W | 0-2 | |
| Latvia Int. Qual | 05/30 15:00 | - | Tony Lindelof v Mateusz Dubowski | W | 0-2 | |
| Polish Open Qual | 03/28 11:00 | - | Mateusz Dubowski v Antonio Li | W | 2-0 | |
| Swiss Open WD Qual | 02/27 07:00 | - | Mateusz Dubowski v Andreas Hoffmann | W | 2-0 | |
| Swiss Open WD Qual | 09/20 11:40 | 1 | Mateusz Dubowski v Jonas Jaeger | - | Retired | |
| Swiss Open WD Qual | 09/27 14:10 | 1 | Adi Pratama v Mateusz Dubowski | L | 2-1 | |
| All England Open | 08/22 10:30 | 6 | Mateusz Dubowski v Anthony Sinisuka Ginting | L | 0-2 | |
| All England Open | 03/14 17:00 | 6 | Jen Hao Hsu v Mateusz Dubowski | L | 2-0 | |
| All England Open | 03/01 16:30 | 1 | Dan Lin v Mateusz Dubowski | L | 2-0 | |
| All England Open | 02/28 18:30 | 6 | Mateusz Dubowski v Anton Kaisti | W | 2-0 | |
| Indonesia Masters XD | 02/28 14:46 | - | Collins Valentine Filimon v Mateusz Dubowski | W | 0-2 | |
| Indonesia Masters XD | 02/16 18:00 | - | Sergey Sirant v Mateusz Dubowski | L | 2-1 | |
| Indonesia Masters XD | 11/24 11:00 | 5 | Lucas Corvee v Mateusz Dubowski | L | 2-0 | |
| Indonesia Masters XD | 11/23 18:10 | 6 | Mateusz Dubowski v Ben Torrance | W | 2-0 | |
| Giraldilla Int. XD | 09/29 09:06 | - | Mateusz Dubowski v Pierrick Cajot | L | 1-2 | |
| Giraldilla Int. XD | 09/28 18:15 | - | Vincent Medina v Mateusz Dubowski | W | 0-2 |