| Open de Omã Sub21 - Feminino | 01/24 18:00 | - | Mateusz Zelengowski v Daniel Berzosa | L | 1-3 | |
| European Youth Champs Singles | 07/22 12:52 | - | Teodor Istrate v Mateusz Zelengowski | L | 4-0 | |
| Campeonato Europeu de Juniores - Equipas | 07/15 09:30 | - | Mateusz Zelengowski v Federico Vallino | L | 1-3 | |
| Poland First league | 06/05 16:34 | - | Lukasz Nadolski v Mateusz Zelengowski | W | 1-3 | |
| Austrian Bundesliga 1 | 01/27 16:20 | - | Michal Wandachowicz v Mateusz Zelengowski | W | 1-3 | |
| Poland First league | 12/04 16:33 | - | Mateusz Troka v Mateusz Zelengowski | L | 3-1 | |
| Poland First league | 12/04 14:07 | - | Daniel Artur v Mateusz Zelengowski | L | 3-0 |