Stadium: Center Court Round: 25 Ground: Hardcourt indoor
| ITF Finland F1 Qual | 2018/07/28 07:00 | Mikko Rouvala v Leevi Saatela | 3-6,2-6 |
| Challenger Tampere | 2018/07/21 12:50 | Mikko Rouvala v Gustav Hansson | 1-6,1-6 |
| ITF Spain F13 | 2018/05/26 09:00 | Mikko Rouvala v Adria Alvarez | 4-6,6-7 |
| ITF Croatia F3 | 2018/03/18 10:30 | Mikko Rouvala v Turpal Gadamauri | 2-6,3-6 |
| ITF Finland F4 Qual | 2017/11/11 11:00 | Mikko Rouvala v Ilari Vesanen | 6-7,1-6 |
| ITF Turkey F38 | 2017/10/07 07:00 | David Gorsic v Mikko Rouvala | 6-3,7-5 |
| ITF Finland F3 Qual | 2017/08/12 12:00 | Mikko Rouvala v Igor Rud | 2-6,3-6 |
| ITF Finland F2 Qual | 2017/08/05 07:00 | Masi Sarpola v Mikko Rouvala | 6-0,1-6,6-1 |
| Challenger Bratislava | 2018/11/04 10:20 | Alexander Bublik v Patrik Niklas-Salminen | 6-4,7-6 |
| Challenger Bratislava | 2018/11/03 11:15 | Samuel Puskar v Patrik Niklas-Salminen | 2-6,3-6 |
| Challenger Eckental | 2018/10/28 10:00 | Alexander Bublik v Patrik Niklas-Salminen | 7-6,6-3 |
| Challenger Ismaning | 2018/10/13 13:30 | Geoffrey Blancaneaux v Patrik Niklas-Salminen | 6-4,6-3 |
| ITF Sweden F5 | 2018/10/06 10:00 | Emil Ruusuvuori v Patrik Niklas-Salminen | 6-4,6-4 |
| ITF Sweden F5 | 2018/10/05 14:30 | Patrik Niklas-Salminen v Jonathan Mridha | 7-6,6-4 |
| 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 |