Stadium: Court 2 Round: 62 Ground: Clay
| ITF Italy F13 | 2018/06/02 07:30 | Siim Troost v Marko Pavlovic | 7-5,6-0 |
| ITF Turkey F17 | 2018/04/28 07:30 | Sorin Andrei Iordache v Siim Troost | 7-5,3-6,6-3 |
| ITF Turkey F16 | 2018/04/21 07:30 | Nik Razborsek v Siim Troost | 6-2,6-2 |
| ITF Portugal F2 Qual | 2018/02/24 12:30 | Joel Cannell v Siim Troost | 6-3,6-3 |
| ITF Germany F1 | 2018/01/07 11:30 | Siim Troost v Jakob Cadonau | 5-7,5-7 |
| ITF Finland F4 Qual | 2017/11/11 13:30 | Siim Troost v Patrick Mayer | 4-6,2-6 |
| ITF Estonia F4 | 2017/11/07 13:00 | Siim Troost v Vladimir Ivanov | 2-6,3-6 |
| ITF Estonia F3 | 2017/10/30 10:55 | Pavel Kotov v Siim Troost | 6-3,6-2 |
| ITF Italy F13 | 2018/06/02 07:30 | Paolo Dagnino v Mattias Siimar | 3-6,6-3,4-6 |
| ITF Finland F3 | 2017/08/15 10:10 | Patrik Niklas-Salminen v Mattias Siimar | 6-4,7-6 |
| ITF Finland F1 | 2017/08/03 11:40 | Mattias Siimar v Luca Gelhardt | 6-4,1-6,6-7 |
| ITF Finland F1 | 2017/08/02 10:00 | Mattias Siimar v Aaro Pollanen | 6-4,6-2 |
| ITF Finland F1 | 2017/07/31 07:00 | Alexander Vasilenko v Mattias Siimar | 3-6,6-2,4-6 |
| ITF Estonia F1 | 2017/07/25 13:50 | Mattias Siimar v Arturs Lazdins | 1-6,2-6 |
| ITF Poland F4 | 2017/07/06 10:45 | Mattias Siimar v Samuel Bensoussan | 4-6,2-6 |
| ITF Poland F4 | 2017/07/05 10:40 | Mattias Siimar v Oleg Prihodko | 6-1,4-6,6-0 |