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 |
| ITF Sweden F5 | 2018/10/04 12:00 | Patrik Niklas-Salminen v David Poljak | 6-1,7-6 |
| 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 Sweden F5 | 2018/10/04 13:35 | Markus Eriksson v Jonathan Mridha | 7-5,3-6,4-6 |
| ITF Sweden F5 | 2018/10/03 15:45 | Jonathan Mridha v Liam Caruana | 7-6,6-0 |
| ITF Sweden F5 | 2018/10/01 13:00 | George Loffhagen v Jonathan Mridha | 6-2,6-7,4-6 |
| ITF Sweden F4 | 2018/09/26 12:50 | Jonathan Mridha v Markus Eriksson | 6-4,4-6,5-7 |
| ITF Sweden F4 | 2018/09/25 14:50 | Jonathan Stenberg v Jonathan Mridha | 2-6,3-6 |
| Davis Cup | 2018/09/16 13:45 | Sandro Ehrat v Jonathan Mridha | 6-4,3-6,4-6,6-7 |
| Davis Cup | 2018/09/14 15:00 | Henri Laaksonen v Jonathan Mridha | 7-6,6-2,6-3 |
| ITF Italy F26 | 2018/09/06 09:40 | Jonathan Mridha v Gijs Brouwer | 4-6,6-7 |