Stadium: Court 2 Round: 28 Ground: Hardcourt indoor
| ITF Estonia F3 | 2017/11/02 09:00 | Jonathan Mridha v Patrik Niklas-Salminen | 6-3,6-3 |
| ITF Finland F1 | 2016/08/03 13:00 | Patrik Niklas-Salminen v Jonathan Mridha | 3-6,4-6 |
| Challenger Tampere | 2018/07/24 14:00 | Patrik Niklas-Salminen v Ivan Gakhov | 2-6,6-7 |
| ITF Estonia F1 | 2018/07/20 09:00 | Markos Kalovelonis v Patrik Niklas-Salminen | 6-4,7-5 |
| ITF Estonia F1 | 2018/07/19 07:00 | Patrik Niklas-Salminen v Denis Klok | 7-6,6-2 |
| 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 |
| Challenger Tampere Qual | 2018/07/22 07:30 | Jonathan Mridha v Viktor Durasovic | 6-3,3-6,6-7 |
| Challenger Tampere | 2018/07/21 08:45 | Andrei Iakovlev v Jonathan Mridha | 1-6,0-6 |
| Challenger Bastad | 2018/07/09 10:45 | Goncalo Oliveira v Jonathan Mridha | 6-4,7-5 |
| ITF Italy F16 | 2018/06/25 12:50 | Jonathan Mridha v Andrea Grazioso | 7-6,6-4 |
| ITF Italy F15 | 2018/06/19 11:40 | Jonathan Mridha v Omar Giacalone | 4-6,6-4,2-6 |
| ITF Qatar F4 | 2017/12/06 13:30 | Jonathan Mridha v Maxime Hamou | 6-7,3-6 |
| ITF Qatar F4 | 2017/12/05 17:10 | Fred Simonsson v Jonathan Mridha | 3-6,4-6 |
| ITF Finland F4 | 2017/11/14 16:55 | Emil Ruusuvuori v Jonathan Mridha | 7-6,2-6,7-6 |