Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| Challenger - Lille | 2023/03/26 14:50 | James McCabe v Mertens, Yannick | 6-2,6-3 |
| Challenger - Ténérife - Qualif. | 2023/02/05 12:40 | Joao Domingues v Mertens, Yannick | 6-4,6-2 |
| Challenger - Tenerife | 2023/01/15 14:15 | Mertens, Yannick v Lucas Gerch | 2-6,1-6 |
| Roanne, France | 2022/11/06 11:15 | Mertens, Yannick v Arthur Cazaux | 3-6,2-6 |
| Antwerp, Belgium | 2022/10/16 11:45 | Mertens, Yannick v Jesper De Jong | 3-6,6-3,1-6 |
| ITF M25 Rodez | 2022/10/12 16:15 | Mertens, Yannick v Matteo Martineau | 4-6,2-6 |
| ITF M25 Nevers | 2022/10/05 08:00 | Arthur Bouquier v Mertens, Yannick | 6-3,3-6,6-3 |
| Challenger Rennes | 2022/09/13 19:55 | Hugo Gaston v Mertens, Yannick | 7-5,6-4 |
| ITF M15 Casablanca | 2023/06/22 09:30 | Adrien Gobat v Stefano Reitano | 1-6,6-4,3-6 |
| ITF M15 Casablanca | 2023/06/21 11:00 | Adrien Gobat v Paulo A S Dos Santos | 7-6,7-6 |
| ITF M25 Grasse | 2023/06/15 13:30 | Adrien Gobat v Murkel Dellien | 6-7,1-6 |
| ITF M25 Grasse | 2023/06/13 07:25 | Raffael Schaer v Adrien Gobat | 0-6,3-6 |
| ITF - M15 Monastir | 2023/06/04 08:30 | Adrien Gobat v Cozbinov, Alexander | 1-6,4-6 |
| ITF - M15 Monastir | 2023/06/03 08:30 | Eliakim Coulibaly v Adrien Gobat | 3-6,7-6,6-7 |
| ITF - M15 Monastir | 2023/06/02 08:30 | Adrien Gobat v Francois Musitelli | 7-5,6-2 |
| ITF - M15 Monastir | 2023/06/01 11:45 | Adrien Gobat v Breysach , Martin | 6-2,6-2 |