| ITF M25 Sunderland | 2020/02/26 13:00 | Jeremy Jahn v Jonathan Mridha | 3-6,3-6 |
| Challenger Campinas | 2019/10/01 16:20 | Nicolas Alvarez v Jeremy Jahn | 6-4,6-2 |
| Challenger Biella | 2019/09/18 11:15 | Alejandro Davidovich Fokina v Jeremy Jahn | 7-5,7-5 |
| Challenger Biella | 2019/09/16 14:10 | Jeremy Jahn v Enrico Dalla Valle | 6-3,6-4 |
| Challenger Szczecin | 2019/09/13 12:00 | Albert Ramos-Vinolas v Jeremy Jahn | 7-6,6-2 |
| Challenger Szczecin | 2019/09/12 12:45 | Jeremy Jahn v Gianluca Mager | 6-1,2-6,6-4 |
| Challenger Szczecin | 2019/09/11 08:00 | Rudolf Molleker v Jeremy Jahn | 4-6,3-6 |
| Challenger Szczecin | 2019/09/10 14:00 | Vit Kopriva v Jeremy Jahn | 5-7,4-6 |
| ITF M15 Loule | 2020/03/12 11:00 | Maverick Banes v Marvin Moeller | 6-2,2-6,6-3 |
| ITF M15 Loule | 2020/03/11 10:30 | Yannik Steinegger v Marvin Moeller | 3-6,4-6 |
| ITF M15 Loule | 2020/03/09 15:45 | Marvin Moeller v Jose Joaquin M Cisneros | 6-2,6-2 |
| ITF M15 Loule | 2020/03/09 11:00 | Albert Roglan v Marvin Moeller | 7-6,5-7,8-10 |
| ITF M15 Loule | 2020/03/08 10:00 | Guilherme Sousa Severin v Marvin Moeller | 0-6,0-6 |
| ITF M15 Faro | 2020/03/02 15:30 | Wojciech Marek v Marvin Moeller | 6-3,6-7,10-3 |
| ITF M15 Faro | 2020/03/02 10:00 | Marvin Moeller v Yannik Steinegger | 6-1,6-4 |
| ITF M15 Faro | 2020/03/01 13:00 | Marvin Moeller v Grigoriy Korobeynikov | 6-2,6-2 |