Stadium: Court 2 Round: 25 Ground: Carpet indoor
| ITF M25 Trimbach | 2021/03/09 10:50 | Patrik Hartmeier v Luc Hoeijmans | 3-6,6-3,10-7 |
| ITF M25 Trimbach | 2021/03/08 13:35 | Patrik Hartmeier v Jip Van Assendelft | 7-5,7-5 |
| ITF M15 Manacor | 2021/01/10 09:30 | Edoardo Graziani v Patrik Hartmeier | 6-2,6-2 |
| ITF M15 Heraklion | 2020/11/24 07:30 | Naoki Tajima v Patrik Hartmeier | 6-4,6-2 |
| ITF M15 Heraklion | 2020/11/23 08:00 | Stephanos Schinas v Patrik Hartmeier | 6-4,1-6,11-13 |
| ITF M15 Heraklion | 2020/11/16 07:30 | Patrik Hartmeier v Stuart Parker | 3-6,1-6 |
| ITF M15 Heraklion | 2020/11/15 08:00 | Ioannis Xilas v Patrik Hartmeier | 6-1,3-6,5-10 |
| ITF M15 Sarreguemines | 2020/10/25 10:30 | Patrik Hartmeier v Milan Welte | 6-2,6-7,5-10 |
| ITF M15 Monastir | 2021/02/16 13:00 | Marvin Moeller v Naoki Tajima | 2-6,3-6 |
| ITF M15 Monastir | 2021/02/09 10:30 | Lukas Mugevicius v Marvin Moeller | 6-3,6-2 |
| ITF M15 Monastir | 2021/02/04 11:00 | Skander Mansouri v Marvin Moeller | 6-0,6-1 |
| ITF M15 Monastir | 2021/02/03 13:50 | Louis Herman v Marvin Moeller | 3-6,6-4,4-6 |
| Tysk mesterskap | 2020/12/08 15:00 | Marvin Moeller v Christoph Negritu | 6-7,6-3,3-6 |
| Tysk mesterskap | 2020/12/07 15:00 | Johannes Fleischmann v Marvin Moeller | 2-6,2-5 |
| Challenger Eckental | 2020/11/07 10:00 | Marvin Moeller v Ramkumar Ramanathan | 6-4,1-6,1-6 |
| Challenger Eckental | 2020/11/06 11:15 | Kamil Majchrzak v Marvin Moeller | 4-6,2-6 |