Round: 46 Ground: Clay
| Challenger - Marburg - Qualifikation | 2018/07/01 09:00 | Dragos Dima v Andreas Haider-Maurer | 6-4,6-3 |
| Challenger - Marburg - Qualifikation | 2018/06/30 10:35 | Gibril Diarra v Andreas Haider-Maurer | 3-6,5-7 |
| Challenger - Mailand - Qualifikation | 2018/06/24 13:45 | Pedro Cachin v Andreas Haider-Maurer | 3-6,4-6 |
| Challenger - Mailand - Qualifikation | 2018/06/23 12:50 | Nicolas Almagro v Andreas Haider-Maurer | 4-6,4-6 |
| Challenger - Poprad Tatry | 2018/06/20 12:00 | Andreas Haider-Maurer v Mohamed Safwat | 5-7,6-1,4-6 |
| Challenger - Poprad Tatry | 2018/06/19 08:00 | Andreas Haider-Maurer v Marek Jaloviec | 6-3,6-4 |
| Challenger - Poprad Tatry - Qualifikation | 2018/06/17 12:50 | Andreas Haider-Maurer v Patrik Rikl | 7-6,7-6 |
| Challenger - Poprad Tatry - Qualifikation | 2018/06/16 14:55 | Andreas Haider-Maurer v Tomas Liska | 6-3,6-3 |
| ITF - Deutschland F6 | 2018/07/06 14:55 | Louis Wessels v Jonathan Kanar | 6-1,6-3 |
| ITF - Deutschland F6 | 2018/07/05 11:45 | Gregorio Cordonnier v Jonathan Kanar | 4-6,1-6 |
| ITF - Deutschland F6 | 2018/07/03 17:05 | Daniel Kopeinigg v Jonathan Kanar | 2-6,2-6 |
| ITF - Belgien F2 | 2018/06/28 09:00 | Zizou Bergs v Jonathan Kanar | 6-1,6-4 |
| ITF - Belgien F2 | 2018/06/26 13:25 | George Tsivadze v Jonathan Kanar | 2-6,4-6 |
| ITF - Tunesien F23 | 2018/06/13 13:20 | Jonathan Kanar v Hugo Pontico | 0-6,2-6 |
| ITF - Frankreich F9 - Qualifikation | 2018/05/03 14:35 | Laurent Lokoli v Jonathan Kanar | 2-6,6-2,6-2 |
| ITF - Frankreich F9 - Qualifikation | 2018/05/01 15:40 | Jonathan Kanar v Fran Zvonimir Zgombic | 7-6,7-5 |