Stadium: Ringi 3 Round: 27 Ground: Hardcourt indoor
| ITF Estonia F1 | 2018/07/18 08:00 | Patrik Niklas-Salminen v Matvey Khomentovskiy | 6-4,6-4 |
| ITF Estonia F1 | 2018/07/17 07:00 | Patrik Niklas-Salminen v Lucas Renard | 6-1,6-2 |
| ITF Netherlands F2 | 2018/07/07 11:40 | Alexander Zhurbin v Patrik Niklas-Salminen | 6-3,3-6,6-2 |
| ITF Netherlands F2 | 2018/07/06 11:30 | Patrik Niklas-Salminen v Bart Van Den Berg | 6-2,7-5 |
| ITF Netherlands F2 | 2018/07/05 11:35 | Patrik Niklas-Salminen v Fernando Yamacita | 3-6,6-4,7-6 |
| ITF Netherlands F2 | 2018/07/03 10:05 | Valentin Guenther v Patrik Niklas-Salminen | 4-6,3-6 |
| ITF Spain F13 | 2018/05/28 12:00 | Emil Ruusuvuori v Patrik Niklas-Salminen | 6-3,4-6,6-4 |
| ITF China F6 | 2018/05/20 02:30 | Patrik Niklas-Salminen v Fajing Sun | 2-6,6-4,6-4 |
| ITF Estonia F1 | 2018/07/18 07:00 | Karl Friberg v Denis Klok | 4-6,6-3,5-7 |
| ITF Estonia F1 | 2018/07/17 08:35 | Paul Jubb v Denis Klok | 4-6,6-1,2-6 |
| ITF Netherlands F3 | 2018/07/09 10:00 | Sekou Bangoura v Denis Klok | 7-5,6-2 |
| ITF Netherlands F2 | 2018/07/06 12:15 | Harri Heliovaara v Denis Klok | 3-1 |
| 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 12:40 | Denis Klok v Stephan Fransen | 6-3,6-3 |
| ITF Germany F5 | 2018/06/27 16:00 | Denis Klok v Marvin Netuschil | 3-6,3-6 |
| ITF Hungary F4 Qual | 2018/06/10 08:00 | Denis Klok v Strahinja Rakic | 2-6,1-6 |