Stadium: Center Court Round: 25 Ground: Carpet indoor
| Challenger - Hamburg | 2020/10/28 10:45 | Kamil Majchrzak v Yannick Maden | 6-4,6-4 |
| Challenger - Hamburg | 2020/10/26 13:05 | Kimmer Coppejans v Yannick Maden | 0-6,1-6 |
| Challenger - Ismaning | 2020/10/21 15:10 | Yannick Maden v Yannick Hanfmann | 4-6,6-3,5-7 |
| French Open | 2020/09/23 14:45 | Yannick Maden v Nikola Milojevic | 6-4,0-6,2-6 |
| French Open | 2020/09/21 13:45 | Yannick Maden v Illya Marchenko | 4-6,6-2,6-1 |
| Challenger - Prostějov | 2020/09/08 10:55 | Yannick Maden v Dmitry Popko | 6-3,4-6,1-6 |
| Challenger - Cordenons | 2020/09/02 14:00 | Yannick Maden v Lorenzo Musetti | 1-6,0-6 |
| Challenger - Praha 2 | 2020/08/26 08:30 | Yannick Maden v Dmitry Popko | 5-7,1-6 |
| Challenger - Eckental | 2020/11/01 13:15 | Lukáš Klein v Johannes Haerteis | 1-6,4-6 |
| Challenger - Eckental | 2020/10/31 09:00 | Leopold Zima v Johannes Haerteis | 0-6,3-6 |
| Challenger - Ismaning | 2020/10/17 14:20 | Hugo Grenier v Johannes Haerteis | 6-3,6-4 |
| ITF - M25 Porto | 2020/10/01 11:30 | Alessandro Bega v Johannes Haerteis | 6-4,0-6,7-5 |
| ITF - M25 Porto | 2020/09/30 10:30 | Emilio Nava v Johannes Haerteis | 6-1,4-6,2-6 |
| Challenger - Sibiu | 2020/09/24 08:00 | Johannes Haerteis v Carlos Gomez-Herrera | 3-6,7-6,2-6 |
| Challenger - Sibiu | 2020/09/23 08:00 | Arthur Rinderknech v Johannes Haerteis | 3-6,6-3,6-7 |
| Challenger - Sibiu | 2020/09/21 11:25 | Johannes Haerteis v Nicholas David Ionel | 7-5,6-2 |