| Thomas Cup | 05/09 02:20 | - | Jun Peng Zhao v Arnaud Merkle | L | 2-0 | |
| Korea Masters | 04/14 03:20 | - | Arnaud Merkle v Sitthikom Thammasin | L | 1-2 | |
| Korea Masters | 04/13 01:40 | 5 | Luka Wraber v Arnaud Merkle | W | 0-2 | |
| Orleans Masters | 04/01 14:50 | - | Arnaud Merkle v Christian Adinata | L | 1-2 | |
| Orleans Masters | 03/31 14:20 | 4 | Arnaud Merkle v Ygor Coelho | W | 2-0 | |
| Orleans Masters | 03/30 13:00 | - | Arnaud Merkle v Felix Burestedt | W | 2-0 | |
| Orleans Masters | 03/29 17:00 | 6 | Arnaud Merkle v Siril Verma | W | 2-1 | |
| Swiss Open | 03/24 16:20 | - | Anthony Sinisuka Ginting v Arnaud Merkle | L | 2-1 | |
| Swiss Open | 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 | |
| India Open | 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 | |
| Scottish Open | 11/27 18:40 | - | Joo Ven Soong v Arnaud Merkle | L | 2-0 | |
| Scottish Open | 11/27 11:00 | - | Arnaud Merkle v Ygor Coelho | W | 2-0 | |
| Scottish Open | 11/26 17:40 | - | Arnaud Merkle v Dong Keun Lee | W | 2-0 | |
| Scottish Open | 11/25 20:50 | - | Arnaud Merkle v Siril Verma | W | 2-0 | |
| Irish Open | 11/18 18:20 | - | Arnaud Merkle v Tze Yong Ng | L | 1-2 | |
| Irish Open | 11/18 10:00 | 5 | Joonas Korhonen v Arnaud Merkle | W | 0-2 | |
| Belgian Int. | 10/28 15:00 | - | Ajay Jayaram v Arnaud Merkle | L | 2-1 | |
| Belgian Int. | 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.