Stadium: Court 5 Round: 27
| ITF Switzerland F5 MD | 2018/09/04 15:20 | Heliovaara/Niklas-Salminen v Pietri/Vibert | 6-1,6-1 |
| Challenger Tampere - MP | 2018/07/27 15:10 | Heliovaara/Niklas-Salminen v Gakhov/Pavlioutchenkov | 6-3,3-6,10-12 |
| Challenger Tampere - MP | 2018/07/26 15:20 | Virtanen/Virtanen v Heliovaara/Niklas-Salminen | 2-6,0-6 |
| Challenger Tampere - MP | 2018/07/25 15:00 | Sakamoto/Souza v Heliovaara/Niklas-Salminen | 1-6,1-6 |
| ITF Netherlands F2 MD | 2018/07/05 18:00 | Heliovaara/Niklas-Salminen v Brouwer/Sels | 6-4,0-6,6-10 |
| ITF Netherlands F2 MD | 2018/07/04 14:30 | Heliovaara/Niklas-Salminen v de Krom/Nijboer | 6-1,6-2 |
| ITF Netherlands F2 MD | 2018/07/02 15:50 | Heliovaara/Niklas-Salminen v Bothwell/Bothwell | 6-2,6-1 |
| ITF China F6 MD | 2018/05/18 06:00 | Heliovaara/Niklas-Salminen v Gao/Te | 6-2,6-3 |
| ITF Switzerland F5 MD | 2018/09/03 15:30 | Baltensperger/Ehrat v Nikles/Perret | 7-5,6-4 |