| Bulgarian Int. Qual | 2019/10/03 12:00 | Makarski, Stilian v Skinner, Lloyd | L | 2-0 |
| Bulgarian Int. Qual | 2019/10/03 09:20 | Skinner, Lloyd v Jahid Alhasanov | W | 2-0 |
| Cyprus Int. | 2021/10/17 05:50 | Tarun Reddy Katam v Joel Koenig | L | 2-0 |
| Cyprus Int. | 2021/10/16 15:30 | Mathias Solgaard v Joel Koenig | W | 1-2 |
| Cyprus Int. | 2021/10/16 13:10 | Mikolaj Szymanowski v Joel Koenig | W | 1-2 |
| Cyprus Int. | 2021/10/15 10:50 | Boichinov, Peyo 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 Shmundyak, Oleksandar | 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 |