Round: 26 Ground: Clay
| Challenger Scheveningen Qual | 2018/07/14 08:00 | Michiel de Krom v von Massow, George | 5-7,6-1,0-6 |
| ITF Netherlands F5 | 2018/08/20 10:00 | Hermans, Mats v Michiel de Krom | 3-6,3-6 |
| ITF Netherlands F4 | 2018/08/16 09:40 | Michiel de Krom v Niels Lootsma | 1-6,6-4,5-7 |
| ITF Netherlands F4 | 2018/08/14 11:25 | Gerritsen, Stephan v Michiel de Krom | 4-6,2-6 |
| ITF Belgium F7 | 2018/08/07 12:30 | Tomas Martin Etcheverry v Michiel de Krom | 5-7,6-3,6-1 |
| Challenger Scheveningen Qual | 2018/07/14 08:00 | Michiel de Krom v von Massow, George | 5-7,6-1,0-6 |
| ITF Netherlands F3 | 2018/07/10 15:25 | Michiel de Krom v Gelhardt, Luca | 7-6,6-7,2-6 |
| ITF Netherlands F2 | 2018/07/05 11:20 | Denis Klok v Michiel de Krom | 7-6,4-6,7-5 |
| ITF Netherlands F2 | 2018/07/03 10:30 | Michiel de Krom v Gennaro, Dante | 6-7,7-6,6-0 |
| ITF Netherlands F5 | 2018/08/24 12:00 | Botic Van De Zandschulp v von Massow, George | 6-2,6-0 |
| ITF Netherlands F5 | 2018/08/20 08:00 | von Massow, George v Mantilla, Felipe | 6-4,7-6 |
| ITF Netherlands F4 | 2018/08/14 10:00 | von Massow, George v Lazov, Alexander | 4-6,3-6 |
| Challenger Pullach Qual | 2018/08/06 10:00 | Kimmer Coppejans v von Massow, George | 6-2,6-2 |
| Challenger Pullach Qual | 2018/08/05 11:50 | Haider-Maurer, Andreas v von Massow, George | 5-7,6-7 |
| Challenger Pullach Qual | 2018/08/04 13:05 | von Massow, George v Marek Jaloviec | 6-4,4-6,6-3 |
| Challenger Liberec Qual | 2018/07/29 12:00 | David Poljak v von Massow, George | 7-6,7-6 |
| Challenger Liberec Qual | 2018/07/28 14:00 | von Massow, George v Haider-Maurer, Andreas | 3-6,6-3,6-2 |