Stadium: Court 2 Round: 25 Ground: Clay
| Challenger Pullach Qual | 2018/08/04 15:55 | Alexandre Muller v Johannes Haerteis | 7-6,7-5 |
| Challenger Sopot Qual | 2018/07/29 09:00 | Roberto Marcora v Johannes Haerteis | 6-4,7-5 |
| Challenger Sopot Qual | 2018/07/28 10:40 | Johannes Haerteis v Kamil Gajewski | 6-3,6-2 |
| ITF Austria F3 | 2018/07/19 15:00 | Johannes Haerteis v Nerman Fatic | 2-6,6-7 |
| ITF Austria F3 | 2018/07/18 09:30 | Mariano Kestelboim v Johannes Haerteis | 2-6,7-5,2-6 |
| ITF Austria F3 | 2018/07/17 13:15 | Gabriel Huber v Johannes Haerteis | 2-6,1-6 |
| ITF Austria F2 | 2018/07/14 12:00 | Nerman Fatic v Johannes Haerteis | 1-6,6-3,6-1 |
| ITF Austria F2 | 2018/07/13 12:40 | Johannes Haerteis v Eduardo Dischinger | 6-1,1-6,6-3 |
| ITF Romania F9 | 2018/08/16 12:20 | Cristian Rodriguez v Gabi Adrian Boitan | 6-0,6-1 |
| ITF Romania F9 | 2018/08/15 10:05 | Vladimir Filip v Gabi Adrian Boitan | 1-6,4-6 |
| ITF Romania F8 | 2018/08/10 08:40 | Maxime Tchoutakian v Gabi Adrian Boitan | 4-6,6-4,6-4 |
| ITF Romania F8 | 2018/08/07 07:00 | Calin Manda v Gabi Adrian Boitan | 3-6,1-6 |
| ITF Georgia F2 | 2018/07/15 10:00 | Gabi Adrian Boitan v Alexey Baryshev | 6-4,1-6,2-6 |
| ITF Georgia F2 | 2018/07/14 07:30 | Gabi Adrian Boitan v Vladislav Sveridenko | 6-4,6-2 |
| ITF Georgia F1 | 2018/07/09 10:00 | Gabi Adrian Boitan v Cengiz Aksu | 7-5,4-6,5-7 |
| ITF Georgia F1 | 2018/07/08 11:00 | Gabi Adrian Boitan v Roman Blokhin | 7-5,6-1 |