| Cyprus Int. | 2021/10/15 10:40 | Mikolaj Szymanowski v Borko Petrovic | W | 2-1 |
| Cyprus Int. Qual | 2021/10/14 15:05 | Aris Kattirtzi v Mikolaj Szymanowski | W | 0-2 |
| Polish Int. Qual | 2021/09/23 08:00 | Mikolaj Szymanowski v Varun Kapur | L | 0-2 |
| Polish Open Qual | 2021/03/25 16:35 | Danylo Bosniuk v Mikolaj Szymanowski | L | 2-0 |
| European Team Championships | 2020/02/13 18:00 | Georgii Lebedev v Mikolaj Szymanowski | L | 2-0 |
| Cyprus Int. | 2021/10/15 10:50 | Peyo Boichinov v Joel Koenig | W | 0-2 |
| Bulgarian Int | 2021/10/08 12:00 | Dmitriy Panarin v Joel Koenig | L | 2-0 |
| Bulgarian Int | 2021/10/08 07:20 | Joel Koenig v Oleksandar Shmundyak | W | 2-1 |
| Latvia Int. | 2021/08/27 11:20 | Joel Koenig v Joonas Korhonen | L | 0-2 |
| Denmark Masters Qual | 2021/08/05 07:00 | Joel Koenig v Soren Hald | L | 0-2 |
| Lithuanian Int. | 2021/06/11 10:20 | Joel Koenig v Thomas Fourcade | L | 0-2 |
| Austrian Open | 2021/05/28 14:55 | Joel Koenig v Jan Louda | L | 0-2 |
| Slovenia Int. | 2021/05/20 08:40 | Milan Ludik v Joel Koenig | L | 2-0 |