Stadium: Centre Court Round: 28 Ground: Clay
| ITF Netherlands F5 | 2018/08/24 08:00 | Nik Razborsek v Tom Kocevar-Desman | 7-6,4-6,6-1 |
| ITF Netherlands F5 | 2018/08/22 10:00 | Nik Razborsek v Kevin Kaczynski | 6-4,6-2 |
| ITF Netherlands F5 | 2018/08/21 09:55 | Nik Razborsek v Lucas Hellfritsch | 6-4,7-6 |
| Challenger Portoroz | 2018/08/07 14:00 | Nik Razborsek v Dominik Koepfer | 7-6,5-7,6-7 |
| Challenger - Liberec | 2018/07/31 14:00 | Pedro Martinez v Nik Razborsek | 6-3,4-6,6-3 |
| Challenger Liberec Qual | 2018/07/30 09:00 | Marvin Moeller v Nik Razborsek | 4-6,6-7 |
| Challenger Liberec Qual | 2018/07/29 08:30 | Martin Bugaj v Nik Razborsek | 2-6,0-6 |
| Challenger Tampere Qual | 2018/07/22 11:45 | Nik Razborsek v Markus Eriksson | 3-6,4-6 |
| ITF Netherlands F5 | 2018/08/24 15:05 | Philipp Schroll v Alexander Lazov | 3-6,4-6 |
| ITF Netherlands F5 | 2018/08/23 08:00 | Rayan Ghedjemis v Alexander Lazov | 6-2,2-6,0-6 |
| ITF Netherlands F5 | 2018/08/21 08:00 | Kazuki Nishiwaki v Alexander Lazov | 6-0,2-6,1-6 |
| ITF Netherlands F4 | 2018/08/18 11:00 | Mariano Kestelboim v Alexander Lazov | 3-6,2-6 |
| ITF Netherlands F4 | 2018/08/17 09:00 | Felipe Mantilla v Alexander Lazov | 1-6,6-4,2-6 |
| ITF Netherlands F4 | 2018/08/16 08:00 | Leonard Von Hindte v Alexander Lazov | 4-6,4-6 |
| ITF Netherlands F4 | 2018/08/14 10:00 | George Von Massow v Alexander Lazov | 4-6,3-6 |
| ITF Austria F3 | 2018/07/19 09:30 | Michal Konecny v Alexander Lazov | 3-6,4-6 |