Stadium: Court 1 Round: 54 Ground: Carpet indoor
| ITF M25 Veigy-Foncenex | 2023/01/08 13:05 | Federico Bertuccioli v Yanis Ghazouani Durand | 2-6,3-6 |
| ITF M25 Veigy-Foncenex | 2023/01/08 14:05 | Mayeul Darras v Jonas Schaer | 4-6,4-6 |
| ITF M15 Madrid | 2022/12/07 12:00 | Jan Choinski v Jonas Schaer | 6-1,7-6 |
| ITF M25 Madrid | 2022/12/06 10:00 | Jonas Schaer v Luca Parenti | 6-0,6-0 |
| ITF M15 Madrid | 2022/12/01 08:45 | Benjamin Winter Lopez v Jonas Schaer | 6-4,6-4 |
| ITF M15 Madrid | 2022/11/30 10:10 | Jonas Schaer v Alejandro T Alvarez | 6-3,6-3 |
| ITF M25 Madrid | 2022/11/29 08:30 | Marc Saura Moragrega v Jonas Schaer | 4-6,5-7 |
| ITF M25 Madrid | 2022/11/28 09:00 | Sergio R Pereira v Jonas Schaer | 6-4,3-6,2-10 |
| ITF M25 Madrid | 2022/11/27 13:00 | Mikel Martinez v Jonas Schaer | 7-5,1-6,6-10 |