Stadium: Court 4 Round: 25 Ground: Carpet indoor
| ITF Finland F3 | 2018/08/13 08:15 | Lorenzo Bocchi v Roni Mikael Hietaranta | 6-1,6-2 |
| ITF Finland F2 | 2018/08/08 10:05 | Patrik Niklas-Salminen v Roni Mikael Hietaranta | 6-3,6-3 |
| ITF Finland F2 Qual | 2018/08/05 10:25 | Roni Mikael Hietaranta v Jason Sormunen | 6-2,6-2 |
| ITF Finland F2 Qual | 2018/08/04 10:00 | Karl Kiur Saar v Roni Mikael Hietaranta | 4-6,6-1,4-6 |
| ITF Finland F1 Qual | 2018/07/29 10:15 | Bart Stevens v Roni Mikael Hietaranta | 6-2,6-7,6-2 |
| ITF Finland F1 Qual | 2018/07/28 11:00 | Roni Mikael Hietaranta v Aleksi Lofman | 1-6,7-5,6-0 |
| ITF Finland F4 Qual | 2017/11/11 11:00 | Sergei Pogosian v Roni Mikael Hietaranta | 6-3,6-3 |
| ITF Finland F3 Qual | 2017/08/12 09:30 | Leevi Saatela v Roni Mikael Hietaranta | 6-3,6-4 |
| ITF Estonia F3 | 2018/11/04 09:00 | Julius Tverijonas v Martins Rocens | 5-7,6-3,2-6 |
| ITF Estonia F3 | 2018/11/03 11:00 | Jason Sormunen v Martins Rocens | 5-7,4-6 |
| ITF Estonia F2 | 2018/10/31 09:00 | Martins Rocens v Yanais Laurent | 2-6,6-7 |
| ITF Estonia F2 | 2018/10/29 11:20 | Martins Rocens v Ville-Petteri Ahti | 6-4,6-2 |
| ITF Estonia F2 | 2018/10/28 12:00 | Martins Rocens v Rihards Emulins | 7-6,6-4 |
| ITF Germany F16 | 2018/10/21 12:00 | Kevin Kaczynski v Martins Rocens | 3-6,7-5,6-3 |
| ITF Germany F16 | 2018/10/21 08:00 | Martins Rocens v Cheraag Bajwa | 6-2,7-5 |
| ITF Spain F31 | 2018/10/08 10:35 | Patrick Mayer v Martins Rocens | 6-4,6-4 |