Stadium: Centre Court Round: 45 Ground: Clay
| Challenger Caltanissetta Qual | 2018/06/09 13:25 | Mikhail Balmashev v Marc Sieber | 0-6,1-6 |
| Challenger Heilbronn Qual | 2018/05/12 11:30 | Mikhail Balmashev v Marc Giner | 6-4,4-6,3-6 |
| ITF Turkey F44 | 2017/11/22 07:10 | Mikhail Balmashev v Khumoyun Sultanov | 1-6,0-6 |
| Challenger - Genua | 2018/09/03 08:00 | Andreas Haider-Maurer v Alen Avidzba | 6-4,4-6,2-6 |
| Challenger - Como | 2018/08/25 13:35 | Daniel Masur v Andreas Haider-Maurer | 3-6,6-2,6-3 |
| Challenger - Meerbusch | 2018/08/14 13:45 | Andreas Haider-Maurer v Jan Choinski | 1-6,4-6 |
| Challenger Pullach Qual | 2018/08/05 11:50 | Andreas Haider-Maurer v George Von Massow | 5-7,6-7 |
| Challenger Pullach Qual | 2018/08/04 13:45 | Andreas Haider-Maurer v Sebastian Fanselow | 6-3,7-5 |
| Challenger Liberec Qual | 2018/07/28 14:00 | George Von Massow v Andreas Haider-Maurer | 3-6,6-3,6-2 |
| Challenger Padova Qual | 2018/07/21 11:30 | Andreas Haider-Maurer v Jonathan Kanar | 7-5,4-6,6-7 |
| Challenger Marburg Qual | 2018/07/01 09:00 | Dragos Dima v Andreas Haider-Maurer | 6-4,6-3 |