Stadium: Court 1 Round: 26 Ground: Carpet indoor
| ITF - M15 Sarreguemines | 2020/10/27 15:55 | Leopold Zima v Kenneth Raisma | 7-6,6-7,2-6 |
| ITF - M15 Sarreguemines | 2020/10/26 11:25 | Leopold Zima v Milan Welte | 7-6,6-4 |
| ITF - M15 Sarreguemines | 2020/10/25 09:00 | Kristjan Tamm v Leopold Zima | 2-6,3-6 |
| ITF - M25 Hamburg | 2020/10/18 09:00 | Lenny Hampel v Leopold Zima | 6-2,6-1 |
| ITF - M25 Porto | 2020/09/29 10:30 | Naoki Nakagawa v Leopold Zima | 6-2,6-3 |
| ITF - M25 Porto | 2020/09/28 10:30 | Leopold Zima v Luis Faria | 7-5,6-4 |
| ITF - M25 Porto | 2020/09/27 10:00 | Leopold Zima v Igor Smilansky | 2-6,7-6,10-8 |
| ITF - M15 Castelo Branco | 2020/09/24 16:50 | Leopold Zima v Strong Kirchheimer | 4-6,4-6 |
| 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 |
| Challenger - Iasi | 2020/09/12 09:00 | Johannes Haerteis v Alexandar Lazarov | 3-6,5-7 |
| ITF - M25 Vogau | 2020/08/18 09:35 | Kacper Zuk v Johannes Haerteis | 7-5,6-3 |