| Thomas Cup | 05/09 02:20 | - | Jun Peng Zhao v Arnaud Merkle | L | 2-0 | |
| Masters de Corea del Sur | 04/14 03:20 | - | Arnaud Merkle v Sitthikom Thammasin | L | 1-2 | |
| Masters de Corea del Sur | 04/13 01:40 | 5 | Luka Wraber v Arnaud Merkle | W | 0-2 | |
| Orléans Masters | 04/01 14:50 | - | Arnaud Merkle v Christian Adinata | L | 1-2 | |
| Orléans Masters | 03/31 14:20 | 4 | Arnaud Merkle v Ygor Coelho | W | 2-0 | |
| Orléans Masters | 03/30 13:00 | - | Arnaud Merkle v Felix Burestedt | W | 2-0 | |
| Orléans Masters | 03/29 17:00 | 6 | Arnaud Merkle v Siril Verma | W | 2-1 | |
| Open de Suiza | 03/24 16:20 | - | Anthony Sinisuka Ginting v Arnaud Merkle | L | 2-1 | |
| Open de Suiza | 03/23 15:40 | - | Max Weisskirchen v Arnaud Merkle | W | 0-2 | |
| Syed Modi Int. | 01/23 08:50 | - | Arnaud Merkle v Lucas Claerbout | - | View | |
| Syed Modi Int. | 01/22 08:50 | 2 | Arnaud Merkle v Mithun Manjunath | W | 2-1 | |
| Syed Modi Int. | 01/21 09:30 | 3 | Arnaud Merkle v H.S. Prannoy | W | 2-0 | |
| Syed Modi Int. | 01/20 08:00 | 4 | Arnaud Merkle v Kartikey Gulshan Kumar | W | 2-0 | |
| Syed Modi Int. | 01/18 10:00 | 5 | Kidambi Srikanth v Arnaud Merkle | - | View | |
| Syed Modi Int. | 01/18 06:30 | 5 | Buwaneka Goonethilleka v Arnaud Merkle | W | 0-2 | |
| Open de India | 01/12 06:30 | 5 | Mithun Manjunath v Arnaud Merkle | L | 2-1 | |
| Welsh Int | 12/04 15:20 | - | Siril Verma v Arnaud Merkle | W | 1-2 | |
| Welsh Int | 12/04 10:00 | - | Mads Christophersen v Arnaud Merkle | W | 0-2 | |
| Welsh Int | 12/03 17:40 | - | Subhankar Dey v Arnaud Merkle | W | 0-2 | |
| Welsh Int | 12/03 12:40 | - | Arnaud Merkle v Kevin Cordon | W | 2-0 | |
| Welsh Int | 12/02 15:40 | - | Mithun Manjunath v Arnaud Merkle | W | 1-2 | |
| Open de Escocia | 11/27 18:40 | - | Joo Ven Soong v Arnaud Merkle | L | 2-0 | |
| Open de Escocia | 11/27 11:00 | - | Arnaud Merkle v Ygor Coelho | W | 2-0 | |
| Open de Escocia | 11/26 17:40 | - | Arnaud Merkle v Dong Keun Lee | W | 2-0 | |
| Open de Escocia | 11/25 20:50 | - | Arnaud Merkle v Siril Verma | W | 2-0 | |
| Open de Irlanda | 11/18 18:20 | - | Arnaud Merkle v Tze Yong Ng | L | 1-2 | |
| Open de Irlanda | 11/18 10:00 | 5 | Joonas Korhonen v Arnaud Merkle | W | 0-2 | |
| Internacional de Bélgica | 10/28 15:00 | - | Ajay Jayaram v Arnaud Merkle | L | 2-1 | |
| Internacional de Bélgica | 10/28 08:30 | 5 | Arnaud Merkle v Maxime Moreels | - | Retired | |
| Thomas Cup | 10/13 17:40 | - | Fabian Roth v Arnaud Merkle | W | 1-2 |
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.