| Hungarian Int. | 2021/11/04 12:20 | Joonas Korhonen v S.K. Karunakaran | L | 0-2 |
| Dutch Open Qual | 2021/10/13 10:20 | Elias Bracke v Joonas Korhonen | W | 1-2 |
| Latvia Int. | 2021/08/28 13:40 | Alex Lanier v Joonas Korhonen | L | 2-0 |
| Latvia Int. | 2021/08/28 08:00 | Joonas Korhonen v Nicolas A. Mueller | W | 2-0 |
| Latvia Int. | 2021/08/27 11:20 | Joel Koenig v Joonas Korhonen | W | 0-2 |
| Swedish Open Qual | 2020/01/16 17:45 | Jakob Godt v Joonas Korhonen | L | 2-1 |
| Swedish Open Qual | 2020/01/16 14:30 | Joonas Korhonen v Rasmus Kæseler | W | 2-1 |
| Swedish Open Qual | 2020/01/16 09:00 | Joonas Korhonen v Jacob Schueler | W | 2-1 |
| Belgian Int. | 2021/10/28 15:00 | Ajay Jayaram v Arnaud Merkle | L | 2-1 |
| Thomas Cup | 2021/10/13 17:40 | Fabian Roth v Arnaud Merkle | W | 1-2 |
| Thomas Cup | 2021/10/11 17:20 | Donghun Kim v Arnaud Merkle | W | 0-2 |
| Thomas Cup | 2021/10/09 17:20 | Anders Antonsen v Arnaud Merkle | L | 2-0 |
| Denmark Masters | 2021/08/06 14:20 | Lucas Claerbout v Arnaud Merkle | W | 1-2 |
| Denmark Masters | 2021/08/06 09:20 | Alex Lanier v Arnaud Merkle | W | 0-2 |
| Spain Int | 2021/06/18 13:45 | Arnaud Merkle v Pablo Abian | L | 0-2 |
| Spain Int | 2021/06/18 09:50 | Arnaud Merkle v Ivan Rusev | W | 2-0 |