Round: 54 Ground: Hardcourt outdoor
| ITF Portugal F20 Qual | 2017/09/24 12:00 | Joao Ferreira v Carlos Fernandez-Espinar | 4-6,6-7 |
| ITF Portugal F11 Qual | 2016/09/24 11:30 | Joao Ferreira v Rick Staal | 1-6,0-6 |
| ITF Brazil F2 | 2016/07/02 12:00 | Eduardo Ribeiro v Joao Ferreira | 7-5,6-7,6-3 |
| ITF Brazil F1 | 2016/06/25 13:00 | Fernando Yamacita v Joao Ferreira | 7-5,6-2 |
| Davise karikas | 2018/04/07 08:00 | Roberts Grinvalds v Serafin Zund | 6-0,6-0 |
| Davise karikas | 2018/04/04 07:00 | Roberts Grinvalds v Ioannis Stergiou | 0-6,4-6 |
| ITF Turkey F6 | 2018/02/10 06:00 | Collin Altamirano v Roberts Grinvalds | 6-0,6-3 |
| ITF Turkey F3 | 2018/01/23 11:00 | Maxim Ratniuk v Roberts Grinvalds | 6-3,6-3 |
| ITF Turkey F3 | 2018/01/23 07:30 | Alexandru Danes v Roberts Grinvalds | 3-6,3-6 |
| ITF Turkey F3 | 2018/01/20 09:00 | Nikolaj Katic v Roberts Grinvalds | 0-6,4-6 |
| ITF Estonia F4 | 2017/11/04 14:00 | Daniil Glinka v Roberts Grinvalds | 6-7,6-4,6-3 |
| ITF Estonia F3 | 2017/10/28 09:30 | Pavel Filin v Roberts Grinvalds | 6-3,6-1 |