Stadium: Centre Court Versmold Round: 1
| DTB German Pro Series | 2020/06/14 11:00 | Marvin Moeller v Lucas Gerch | 4-6,5-7 |
| DTB German Pro Series | 2020/06/13 08:30 | Nino Ehrenschneider v Marvin Moeller | 4-6,6-3,6-2 |
| DTB German Pro Series | 2020/06/12 13:00 | Cedrik-Marcel Stebe v Marvin Moeller | 7-5,2-6,6-4 |
| DTB German Pro Series | 2020/06/11 08:00 | Jeremy Jahn v Marvin Moeller | 6-3,0-6,3-6 |
| 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 Oberhaching | 2020/02/20 11:00 | Jakub Paul v Stefan Seifert | 6-4,6-7,6-4 |
| ITF M15 Heraklion | 2020/02/13 08:30 | Antonio Massara v Stefan Seifert | 6-3,7-5 |
| ITF M15 Heraklion | 2020/02/11 09:30 | Ioannis Stamoulos v Stefan Seifert | 0-6,6-2,3-6 |
| ITF M15 Veigy-Foncenex | 2020/01/30 11:45 | Quentin Robert v Stefan Seifert | 7-6,4-6,6-3 |
| ITF M15 Veigy-Foncenex | 2020/01/29 14:40 | Stefan Seifert v Jurgen Briand | 7-6,6-1 |
| ITF M15 Veigy-Foncenex | 2020/01/27 09:00 | Stefan Seifert v Glenn Smits | 6-4,6-1 |
| ITF M25 Nussloch | 2020/01/24 14:30 | Stefan Seifert v Jonas Forejtek | 6-1,6-7,3-6 |
| ITF M25 Nussloch | 2020/01/23 11:30 | Alexander Erler v Stefan Seifert | 4-6,3-6 |