Stadium: C Round: 45
| Challenger Liberec Qual | 2018/07/29 12:00 | David Poljak v George Von Massow | 7-6,7-6 |
| Challenger Liberec Qual | 2018/07/28 14:00 | George Von Massow v Andreas Haider-Maurer | 3-6,6-3,6-2 |
| Challenger Scheveningen Qual | 2018/07/16 10:00 | George Von Massow v Alejandro Davidovich Fokina | 3-6,2-6 |
| Challenger Scheveningen Qual | 2018/07/15 10:00 | Geoffrey Blancaneaux v George Von Massow | 6-3,0-6,1-6 |
| Challenger Scheveningen Qual | 2018/07/14 08:00 | Michiel de Krom v George Von Massow | 5-7,6-1,0-6 |
| Challenger Braunschweig Qual | 2018/07/07 12:30 | George Von Massow v Mariano Kestelboim | 4-6,6-2,3-6 |
| Challenger Braunschweig Qual | 2018/07/07 07:30 | George Von Massow v Joao Pedro Sorgi | 7-5,3-6,6-2 |
| Challenger Marburg Qual | 2018/06/30 17:30 | Christian Lindell v George Von Massow | 7-6,7-5 |
| ITF Czech Republic F6 | 2018/07/12 09:00 | Marek Jaloviec v Jan Mertl | 5-7,2-6 |
| ITF Czech Republic F6 | 2018/07/11 10:45 | Marek Jaloviec v Petr Hajek | 6-1,6-2 |
| ITF Czech Republic F6 | 2018/07/09 08:00 | Marek Jaloviec v Tomas Krcma | 6-0,6-2 |
| ITF Czech Republic F5 | 2018/07/06 08:30 | Marek Jaloviec v David Poljak | 4-6,4-6 |
| ITF Czech Republic F5 | 2018/07/05 10:40 | Marek Jaloviec v Alexander Vasilenko | 7-6,6-4 |
| ITF Czech Republic F5 | 2018/07/04 09:30 | Marek Jaloviec v Michal Konecny | 6-3,6-3 |
| ITF Czech Republic F5 | 2018/07/02 14:30 | Marek Jaloviec v Tomas Krcma | 6-1,6-0 |
| ATP Eastbourne Qual | 2018/06/23 14:40 | Jay Clarke v Marek Jaloviec | 6-4,7-5 |