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