Stadium: Court 5 Round: 29 Ground: Clay
| 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 |
| Challenger Tampere | 2018/07/21 13:55 | Kristjan Tamm v Nik Razborsek | 6-2,3-6,6-7 |
| ATP Umag Qual | 2018/07/15 10:00 | Alexey Vatutin v Nik Razborsek | 6-2,6-3 |
| ITF Italy F14 | 2018/06/16 14:00 | Nik Razborsek v Riccardo Bellotti | 4-6,3-6 |
| ITF Italy F14 | 2018/06/15 14:30 | Nik Razborsek v Jacopo Berrettini | 6-4,6-4 |
| ITF Italy F14 | 2018/06/14 16:00 | Giovanni Fonio v Nik Razborsek | 6-7,2-6 |
| ITF Italy F14 | 2018/06/13 17:45 | Nik Razborsek v Martins Podzus | 6-2,6-1 |
| Challenger Tampere Qual | 2018/07/22 08:50 | Dimitar Kuzmanov v Tom Kocevar-Desman | 6-4,2-6,6-3 |
| Challenger Tampere | 2018/07/21 11:40 | Tom Kocevar-Desman v Karl Friberg | 6-4,7-6 |
| Challenger Scheveningen Qual | 2018/07/14 11:45 | Tom Kocevar-Desman v Kimmer Coppejans | 4-6,4-6 |
| Challenger Bastad Qual | 2018/07/07 11:15 | Fred Simonsson v Tom Kocevar-Desman | 6-4,1-6,6-3 |
| ITF Germany F4 | 2018/06/22 10:05 | Sekou Bangoura v Tom Kocevar-Desman | 6-1,6-1 |
| ITF Bosnia and Herzegovina F3 | 2018/06/03 12:00 | Elmar Ejupovic v Tom Kocevar-Desman | 6-7,3-6 |
| ITF Bosnia and Herzegovina F3 | 2018/06/01 11:00 | Tom Kocevar-Desman v Peter Nagy | 6-4,6-2 |
| ITF Bosnia and Herzegovina F3 | 2018/05/31 09:00 | Tom Kocevar-Desman v Bodin Zarkovic | 6-3,6-1 |