| Nantes Int. | 06/18 08:40 | - | Jason Christ Alexander v Arnaud Merkle | W | 0-2 | |
| Nantes Int. | 06/17 14:40 | - | Arnaud Merkle v Sameer Verma | W | 2-0 | |
| Nantes Int. | 06/17 07:40 | - | Arnaud Merkle v Mark Caljouw | W | 2-0 | |
| Nantes Int. | 06/16 11:00 | - | Arnaud Merkle v Alwi Farhan | W | 2-0 | |
| Nantes Int. | 06/16 09:00 | - | Sacha Leveque v Arnaud Merkle | W | 0-2 | |
| Denmark Masters | 06/10 08:40 | - | Mark Caljouw v Arnaud Merkle | L | 2-0 | |
| Denmark Masters | 06/09 12:40 | - | Arnaud Merkle v Tobias Kuenzi | W | 2-0 | |
| Denmark Masters | 06/09 09:50 | - | Svendsen, Victor v Arnaud Merkle | W | 0-2 | |
| Open de Slovénie | 05/19 13:40 | - | Arnaud Merkle v Kalle Koljonen | L | 0-2 | |
| Masters d'Espagne | 03/30 08:30 | 4 | Kenta Nishimoto v Arnaud Merkle | - | Walkover | |
| Masters d'Espagne | 03/29 08:30 | 5 | Arnaud Merkle v Leverdez, Brice | W | 2-0 | |
| Welsh Int. | 12/02 17:40 | - | Svendsen, Victor v Arnaud Merkle | - | home | |
| Welsh Int. | 12/02 11:00 | - | Joran Kweekel v Arnaud Merkle | W | 1-2 | |
| Hylo Open | 11/03 16:20 | 4 | Srikanth Kidambi v Arnaud Merkle | L | 2-1 | |
| Hylo Open | 11/02 11:50 | 5 | Kantaphon Wangcharoen v Arnaud Merkle | W | 0-2 | |
| Dutch Open | 10/15 14:00 | - | Arnaud Merkle v Mads Christophersen | L | 0-2 | |
| Dutch Open | 10/15 08:40 | - | Magnus Johannesen v Arnaud Merkle | W | 1-2 | |
| Dutch Open | 10/14 12:40 | - | Arnaud Merkle v Burestedt, Felix | W | 2-1 | |
| Dutch Open | 10/13 09:00 | - | Arnaud Merkle v Kalle Koljonen | W | 2-1 | |
| Canada Open | 10/01 19:20 | 2 | Arnaud Merkle v Alex Lanier | L | 1-2 | |
| Canada Open | 09/30 19:40 | 3 | Ho-Shue, Jason Anthony v Arnaud Merkle | W | 1-2 | |
| Canada Open | 09/29 19:40 | 4 | Nilsson, Jacob v Arnaud Merkle | W | 0-2 | |
| Canada Open | 09/28 20:20 | 5 | Amit Kshatriya v Arnaud Merkle | W | 0-2 | |
| Belgian International 2019, MS | 09/16 08:40 | - | Li Yang Su v Arnaud Merkle | W | 1-2 | |
| Belgian International 2019, MS | 09/15 15:20 | - | Koo Takahashi v Arnaud Merkle | W | 1-2 | |
| Belgian International 2019, MS | 09/15 09:10 | - | Po-Wei Wang v Arnaud Merkle | W | 0-2 | |
| Malaysia Masters 2020, MS, Qualification | 07/05 02:20 | - | Arnaud Merkle v Svendsen, Victor | L | 0-2 | |
| Nantes Int. | 06/24 09:00 | - | Belawa, Syabda Perkasa v Arnaud Merkle | L | 2-0 | |
| Thomas Cup | 05/11 12:20 | - | Arnaud Merkle v Adel Hamek | W | 2-0 | |
| Thomas Cup | 05/10 08:00 | - | Rasmus Gemke v Arnaud Merkle | L | 2-0 |
Arnaud Merklé, né le 25 avril 2000 à Staffelfelden (France), est un joueur français de badminton licencié au club Red Star Mulhouse.