Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF Israel F2 | 2018/03/14 09:40 | Heliovaara, Harri v Zemel, Yankel | 6-3,6-4 |
| ITF Israel F1 | 2018/03/05 08:00 | Heliovaara, Harri v Hasson, Jordan | View |
| ITF Great Britain F2 | 2018/02/11 13:00 | Heliovaara, Harri v Authom, Maxime | 7-6,6-4 |
| ITF Great Britain F2 | 2018/02/10 12:55 | Heliovaara, Harri v Corentin Denolly | 6-3,6-4 |
| ITF Great Britain F2 | 2018/02/09 10:00 | Heliovaara, Harri v Haim, Matthias | 7-5,6-1 |
| ITF Great Britain F2 | 2018/02/08 10:00 | Johnson, Luke v Heliovaara, Harri | 2-6,4-6 |
| ITF Great Britain F2 | 2018/02/07 10:00 | Aidan Mchugh v Heliovaara, Harri | 1-6,4-6 |
| Coupe Davis | 2018/02/04 13:20 | Moez Echargui v Heliovaara, Harri | 6-3,4-6,4-6 |
| ITF Israel F2 | 2018/03/14 11:25 | Niklas-Salminen, Patrick v Lucas Gerch | 6-1,6-4 |
| ITF Israel F2 | 2018/03/12 10:00 | Niklas-Salminen, Patrick v Albertoni, Davide | 6-2,6-0 |
| ITF Israel F1 | 2018/03/06 11:35 | Mertens, Yannick v Niklas-Salminen, Patrick | 6-3,6-3 |
| ITF Israel F1 | 2018/03/04 08:00 | Niklas-Salminen, Patrick v Kolobaev, Nikolay | 6-2,6-0 |
| ITF Israel F1 | 2018/03/03 10:30 | Niklas-Salminen, Patrick v George Goldhoff | 6-3,6-2 |
| ITF Turkey F3 | 2018/01/25 07:00 | Niklas-Salminen, Patrick v Gianluca Mager | 3-6,2-6 |
| ITF Turkey F3 | 2018/01/23 07:30 | Niklas-Salminen, Patrick v Shubladze, Vazha | 6-2,6-2 |
| ITF Turkey F3 | 2018/01/22 10:00 | Niklas-Salminen, Patrick v Alekseenko, Gleb | 6-0,6-0 |