Stadium: Court 2 Round: 27 Ground: Hardcourt indoor
| ITF Sweden F5 | 2018/10/03 15:05 | Patrik Niklas-Salminen v Alexander Zgirovsky | 6-3,6-3 |
| ITF Sweden F5 | 2018/10/01 14:25 | Patrik Niklas-Salminen v Filip Bergevi | 6-7,6-3,7-6 |
| ITF Switzerland F5 | 2018/09/07 11:00 | Patrik Niklas-Salminen v Sandro Ehrat | 1-6,4-6 |
| ITF Switzerland F5 | 2018/09/06 11:00 | Patrik Niklas-Salminen v Bruno Santanna | 6-2,6-4 |
| ITF Switzerland F5 | 2018/09/05 10:00 | Patrik Niklas-Salminen v Louroi Martinez | 6-4,6-3 |
| ITF Switzerland F5 | 2018/09/03 14:10 | Matthias Haim v Patrik Niklas-Salminen | 2-6,1-6 |
| ITF Finland F3 | 2018/08/16 11:15 | Karl Friberg v Patrik Niklas-Salminen | 7-6,7-6 |
| ITF Finland F3 | 2018/08/15 10:00 | Matvey Minin v Patrik Niklas-Salminen | 5-7,4-6 |
| ITF Sweden F5 | 2018/10/01 12:00 | Lukas Ollert v David Poljak | 6-4,3-6,2-6 |
| Challenger Orleans Qual | 2018/09/22 17:30 | David Poljak v Yannick Jankovits | 3-6,4-6 |
| Challenger Istanbul | 2018/09/10 07:30 | David Poljak v Tak Khunn Wang | 6-4,6-7,3-6 |
| Challenger Istanbul | 2018/09/09 10:10 | David Poljak v Timur Khabibulin | 6-4,6-2 |
| Challenger Zhangjiagang | 2018/09/02 06:50 | Di Wu v David Poljak | 6-3,6-4 |
| ITF Belarus F3 | 2018/08/24 07:00 | Francesco Vilardo v David Poljak | 6-4,3-6,6-2 |
| ITF Belarus F3 | 2018/08/23 07:00 | Giorgio Ricca v David Poljak | 2-6,4-6 |
| ITF Belarus F3 | 2018/08/22 09:35 | George Tsivadze v David Poljak | 3-6,3-6 |