Stadium: Court 1 Round: 45
| Challenger Liberec Qual | 2018/07/28 14:00 | von Massow, George v Haider-Maurer, Andreas | 3-6,6-3,6-2 |
| Challenger Padova Qual | 2018/07/21 11:30 | Haider-Maurer, Andreas v Kanar, Jonathan | 7-5,4-6,6-7 |
| Challenger Marburg Qual | 2018/07/01 09:00 | Dima, Dragos v Haider-Maurer, Andreas | 6-4,6-3 |
| Challenger Marburg Qual | 2018/06/30 10:35 | Diarra, Gibril v Haider-Maurer, Andreas | 3-6,5-7 |
| Challenger Milan Qual | 2018/06/24 13:45 | Pedro Cachin v Haider-Maurer, Andreas | 3-6,4-6 |
| Challenger Milan Qual | 2018/06/23 12:50 | Almagro, Nicolas v Haider-Maurer, Andreas | 4-6,4-6 |
| Challenger Poprad Tatry | 2018/06/20 12:00 | Haider-Maurer, Andreas v Mohamed Safwat | 5-7,6-1,4-6 |
| Challenger Poprad Tatry | 2018/06/19 08:00 | Haider-Maurer, Andreas v Marek Jaloviec | 6-3,6-4 |
| ITF Italy F18 | 2018/07/13 17:20 | Jelle Sels v Sebastian Fanselow | 6-4,6-2 |
| ITF Italy F18 | 2018/07/12 11:50 | Sebastian Fanselow v Zukas, Matias | 6-1,3-6,6-3 |
| ITF Italy F18 | 2018/07/11 09:30 | Sebastian Fanselow v Frigerio, Lorenzo | 6-1,6-2 |
| ITF Italy F18 | 2018/07/10 13:05 | Sebastian Fanselow v Leonardi, Filippo | 6-3,6-3 |
| Challenger Milan Qual | 2018/06/24 14:30 | Sebastian Fanselow v Alexei Popyrin | 5-7,5-7 |
| Challenger Milan Qual | 2018/06/23 15:05 | Tomas Barrios Vera v Sebastian Fanselow | 2-6,6-1,2-6 |
| Challenger Blois Qual | 2018/06/18 09:00 | Tomas Barrios Vera v Sebastian Fanselow | 6-2,6-1 |
| Challenger Blois Qual | 2018/06/17 11:25 | Sebastian Fanselow v Samper-Montana, Jordi | 7-5,3-6,6-3 |