| Thomas Cup | 10/11 17:20 | - | Donghun Kim v Arnaud Merkle | W | 0-2 | |
| Thomas Cup | 10/09 17:20 | - | Anders Antonsen v Arnaud Merkle | L | 2-0 | |
| Denmark Masters | 08/07 08:40 | - | Brian Yang v Arnaud Merkle | - | Retired | |
| Denmark Masters | 08/06 14:20 | - | Lucas Claerbout v Arnaud Merkle | W | 1-2 | |
| Denmark Masters | 08/06 09:20 | - | Alex Lanier v Arnaud Merkle | W | 0-2 | |
| Spain Int | 06/18 13:45 | - | Arnaud Merkle v Pablo Abian | L | 0-2 | |
| Spain Int | 06/18 09:50 | - | Arnaud Merkle v Ivan Rusev | W | 2-0 | |
| Spain Int | 06/17 15:00 | - | Arnaud Merkle v Joel König | - | Walkover | |
| Austrian Open | 05/30 12:20 | - | Panji Ahmad Maulana v Arnaud Merkle | L | 2-1 | |
| Austrian Open | 05/30 08:20 | - | Ihsan Maulana Mustofa v Arnaud Merkle | W | 0-2 | |
| Austrian Open | 05/29 15:40 | - | Aram Mahmoud v Arnaud Merkle | W | 1-2 | |
| Austrian Open | 05/29 08:40 | - | Arnaud Merkle v Ygor Coelho | W | 2-1 | |
| Austrian Open | 05/28 14:00 | - | Philip I Klindt v Arnaud Merkle | W | 0-2 | |
| Slovenia Int. | 05/22 13:20 | - | Arnaud Merkle v Panji Ahmad Maulana | W | 2-0 | |
| Slovenia Int. | 05/22 09:00 | 2 | Daniel Nikolov v Arnaud Merkle | W | 1-2 | |
| Slovenia Int. | 05/21 14:40 | - | Arnaud Merkle v Alex Lanier | W | 2-0 | |
| Slovenia Int. | 05/21 09:00 | 4 | Arnaud Merkle v Wolfgang Gnedt | W | 2-1 | |
| Slovenia Int. | 05/20 14:00 | - | Arnaud Merkle v Raynaldi Oktavianur Rizky | W | 2-0 | |
| Slovenia Int. | 05/20 09:00 | - | Arnaud Merkle v Jacob Nilsson | W | 2-0 | |
| Portuguese Int. | 05/09 09:00 | 1 | Ditlev Jaeger Holm v Arnaud Merkle | L | 2-0 | |
| Portuguese Int. | 05/08 14:20 | 1 | Johnnie Torjussen v Arnaud Merkle | W | 0-2 | |
| Portuguese Int. | 05/08 08:40 | 1 | Vladimir Malkov v Arnaud Merkle | W | 1-2 | |
| Portuguese Int. | 05/07 15:00 | 1 | Maxime Moreels v Arnaud Merkle | W | 0-2 | |
| Portuguese Int. | 11/07 11:00 | 3 | Luis Enrique Penalver v Arnaud Merkle | L | 2-1 | |
| Portuguese Int. | 11/06 15:30 | - | Arnaud Merkle v Alejandro Alcala | W | 2-0 | |
| Portuguese Int. | 11/06 13:40 | 7 | Arnaud Merkle v Uriel F C Artiga | W | 2-0 | |
| SaarLorLux Open | 10/28 18:30 | 7 | Arnaud Merkle v Nhat Nguyen | L | 1-2 | |
| SaarLorLux Open | 10/27 11:15 | 6 | Arnaud Merkle v B.R. Sankeerth | W | 2-0 | |
| Spain Masters - Kwal. | 02/18 09:35 | - | Arnaud Merkle v Christo Popov | L | 0-2 | |
| EK teams | 02/15 16:30 | - | Arnaud Merkle v Wessel Van Der Aar | W | Retired |
Arnaud-Sylvain-André Merklé (born 25 April 2000) is a French badminton player from Staffelfelden. He was the boys singles European Junior Champion in 2018, and also part of the national junior team that clinched the mixed team title in 2017 and 2018. He participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina, and reached the boys' singles bronze medal match losing to Kodai Naraoka of Japan in the rubber game.
In 2022, Merklé reached his first BWF World Tour final at the Syed Modi International. The final match between Merklé and his compatriot Lucas Claerbout was called off after Merklé tested positive for COVID-19. Both players were later awarded as runner-up with 5.950 ranking point.