Stadium: Ringi 1 Round: 26 Ground: Hardcourt indoor
| ITF Estonia F1 | 2018/07/17 07:00 | Kristofer Siimar v Igor Gimenez | 6-3,3-6,7-5 |
| ITF Italy F13 | 2018/06/02 07:30 | Alex Solanki v Kristofer Siimar | 2-6,6-2,6-4 |
| ITF Finland F3 | 2017/08/14 10:00 | Roberto Marcora v Kristofer Siimar | 6-1,6-4 |
| ITF Finland F1 | 2017/08/01 09:40 | Axel Michon v Kristofer Siimar | 5-7,7-6,6-0 |
| ITF Estonia F1 | 2017/07/25 09:25 | Marc Dijkhuizen v Kristofer Siimar | 6-1,7-5 |
| ITF Poland F4 Qual | 2017/07/02 13:00 | Mattias Siimar v Kristofer Siimar | 6-3,7-5 |
| ITF Poland F3 Qual | 2017/06/25 08:00 | Lev Kazakov v Kristofer Siimar | 7-5,6-3 |
| ITF Poland F1 | 2017/06/11 08:00 | Kristofer Siimar v Linus Frost | 1-6,6-3,0-6 |
| ITF Estonia F1 | 2018/07/17 10:00 | Siim Troost v Markos Kalovelonis | 5-7,5-7 |
| ITF USA F18 | 2018/06/29 18:05 | Markos Kalovelonis v Alejandro Gomez | 6-3,3-6,4-6 |
| ITF USA F18 | 2018/06/28 14:00 | Markos Kalovelonis v Ryan Goetz | 6-3,6-2 |
| ITF USA F18 | 2018/06/27 19:10 | Markos Kalovelonis v Luke Jacob Gamble | 7-6,6-2 |
| ITF USA F16 | 2018/06/24 14:30 | Markos Kalovelonis v Alex Rybakov | 1-6,6-7 |
| ITF USA F16 | 2018/06/23 14:30 | Gianni Ross v Markos Kalovelonis | 6-7,5-7 |
| ITF USA F16 | 2018/06/22 19:00 | Jordi Arconada v Markos Kalovelonis | 6-7,2-6 |
| ITF USA F16 | 2018/06/21 18:30 | Markos Kalovelonis v Cannon Kingsley | 6-3,6-1 |