Round: 44 Ground: Carpet indoor
| ITF Switzerland F1 Qual | 2018/02/03 11:30 | Constantin Christ v Edoardo Graziani | 7-5,6-7,6-3 |
| ITF Germany F10 | 2017/08/06 08:00 | Jan Soeren Hain v Constantin Christ | 6-2,6-0 |
| ITF Germany F9 | 2017/07/30 10:30 | Paul Monteban v Constantin Christ | 6-0,6-1 |
| ITF Germany F1 Qual | 2015/01/06 09:00 | Christian Hirschmueller v Constantin Christ | 7-5,6-1 |
| ITF Germany F1 Qual | 2015/01/05 09:00 | Nathaniel Seyler v Constantin Christ | 6-4,4-6,3-6 |
| ITF Germany F15 | 2014/10/05 08:00 | Daniel Czepielewski v Constantin Christ | 6-4,6-1 |
| ITF Germany F7 | 2014/07/08 09:30 | Alexey Vatutin v Constantin Christ | 6-3,6-1 |
| ITF Turkey F14 | 2014/03/20 11:20 | Constantin Christ v Jared Donaldson | 3-6,2-6 |
| ITF Germany F2 Qual | 2018/01/22 09:00 | Kevin Krawietz v Jakob Aichhorn | 4-6,6-3,6-4 |
| ITF Germany F2 Qual | 2018/01/21 11:00 | Torben Steinorth v Jakob Aichhorn | 3-6,1-6 |
| ITF Germany F1 | 2018/01/11 12:30 | Patrik Nema v Jakob Aichhorn | 6-3,6-4 |
| ITF Germany F1 | 2018/01/10 13:30 | Jakob Aichhorn v Bruno Santanna | 3-6,6-3,6-2 |
| ITF Germany F1 | 2018/01/08 14:00 | Jakob Aichhorn v Leon Hoeveler | 6-3,6-0 |
| ITF Germany F1 | 2018/01/08 09:00 | Jonathan Chang v Jakob Aichhorn | 2-6,3-6 |
| ITF Germany F1 | 2018/01/07 08:00 | Jakob Aichhorn v James Markiewicz | 6-4,6-2 |
| ITF Italy F28 Qual | 2017/09/02 15:55 | Tommaso Schold v Jakob Aichhorn | 2-6,7-6,6-2 |