Stadium: Ringi 2 Round: 44 Ground: Hardcourt indoor
| ITF Estonia F1 | 2018/07/14 07:00 | Siim Troost v Martin Valdo Randpere | 6-0,6-4 |
| ITF Italy F13 | 2018/06/03 08:00 | Siim Troost v Mattias Siimar | 7-5,6-4 |
| 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 Finland F4 | 2017/11/15 14:00 | Albano Olivetti v Karl Kiur Saar | 4-6,7-6,6-4 |
| ITF Finland F4 | 2017/11/14 08:00 | Karl Kiur Saar v Matvey Minin | 5-7,6-3,6-3 |
| ITF Finland F4 Qual | 2017/11/12 08:00 | Gorazd Srbljak v Karl Kiur Saar | 1-6,0-6 |
| ITF Finland F4 Qual | 2017/11/11 11:00 | Morgan Johansson v Karl Kiur Saar | 7-6,1-6,4-6 |
| ITF Estonia F4 | 2017/11/04 14:00 | Leevi Saatela v Karl Kiur Saar | 3-6,6-4,7-5 |
| ITF Estonia F3 | 2017/10/28 07:00 | Karl Kiur Saar v Riccardo Maiga | 2-6,7-5,4-6 |
| ITF Estonia F2 | 2017/10/21 13:00 | Filip Bergevi v Karl Kiur Saar | 7-6,6-3 |
| ITF Sweden F4 Qual | 2017/09/30 10:10 | Karl Kiur Saar v David Norfeldt | 2-6,2-6 |