Stadium: Court 14 Round: 54 Ground: Carpet indoor
| ITF M15 Forbach | 2020/09/28 14:20 | Raphael Baltensperger v Patrik Hartmeier | 6-3,6-3 |
| ITF M15 Forbach | 2020/09/28 07:00 | Lucas Magnaudet v Patrik Hartmeier | 6-7,1-6 |
| ITF M15 Manacor | 2020/01/13 10:30 | Patrik Hartmeier v Alessandro Coppini | 5-7,3-6 |
| ITF M15 Manacor | 2020/01/12 11:30 | David Martirosian v Patrik Hartmeier | 2-6,6-7 |
| ITF M25 Tavira | 2019/10/02 08:30 | Marat Deviatiarov v Patrik Hartmeier | 6-4,7-6 |
| ITF M15 Forbach | 2019/09/26 08:30 | Patrik Hartmeier v Arthur Bouquier | 4-6,6-7 |
| ITF M15 Forbach | 2019/09/25 10:10 | Patrik Hartmeier v Nikolay Vylegzhanin | 6-2,6-3 |
| ITF M15 Pajulahti | 2019/09/17 12:30 | Patrik Hartmeier v Robert Strombachs | 2-6,2-6 |
| Challenger Ismaning | 2020/10/17 09:00 | Tomas Martin Etcheverry v Milan Welte | 5-7,7-6,6-1 |
| ITF M15 Forbach | 2020/09/28 07:00 | Milan Welte v Samuel Brosset | 3-6,2-6 |
| ATP Hamburg | 2020/09/19 08:30 | Milan Welte v Jiri Vesely | 4-6,4-6 |
| DTB German Pro Series | 2020/07/24 07:30 | Milan Welte v Benito Sanchez Martinez | 6-7,3-6 |
| DTB German Pro Series | 2020/07/23 14:40 | Milan Welte v Nino Ehrenschneider | 6-4,6-7,2-6 |
| DTB German Pro Series | 2020/07/22 13:50 | Milan Welte v Osman Torski | 1-6,7-5,6-0 |
| DTB German Pro Series | 2020/06/11 08:00 | Milan Welte v Kevin Krawietz | 0-6,2-6 |
| DTB German Pro Series | 2020/06/10 08:00 | Daniel Masur v Milan Welte | 7-6,6-2 |