Stadium: Court 3 (CC) Round: 25 Ground: Clay
| ITF Estonia F1 | 2018/07/16 07:00 | Soyfer, Daniel v Grinvalds, Roberts | 3-6,3-6 |
| ITF Estonia F1 | 2018/07/16 07:00 | Soyfer, Daniel v Grinvalds, Roberts | 3-6,3-6 |
| ITF Latvia F1 | 2017/07/30 09:00 | Brydolf, Patrik v Soyfer, Daniel | 6-3,6-2 |
| ITF Estonia F1 | 2017/07/23 07:00 | Rud, Igor v Soyfer, Daniel | 6-2,6-2 |
| ITF USA F9 Qual | 2016/02/26 15:00 | Tomas Barrios Vera v Soyfer, Daniel | 6-4,6-4 |
| ITF Latvia F1 | 2018/07/29 07:00 | Grinvalds, Roberts v Vaise, Tomas | 4-6,6-3,6-4 |
| ITF Latvia F1 | 2018/07/28 07:00 | Grinvalds, Roberts v Abou Khamis, Mohammad Khaled | 6-0,6-0 |
| ITF Lithuania F1 | 2018/07/25 11:55 | Vrzesinski, Robertas v Grinvalds, Roberts | 6-2,2-6,6-1 |
| ITF Lithuania F1 | 2018/07/24 13:25 | Grinvalds, Roberts v Joao Lucas Reis da Silva | 4-6,6-4,7-6 |
| ITF Lithuania F1 | 2018/07/22 08:00 | Hermans, Mats v Grinvalds, Roberts | 3-6,3-6 |
| ITF Lithuania F1 | 2018/07/21 13:00 | Russo, Cristiano v Grinvalds, Roberts | 0-6,1-6 |
| ITF Lithuania F1 | 2018/07/21 07:00 | Lukstins, Gustavs v Grinvalds, Roberts | 5-7,0-6 |
| ITF Estonia F1 | 2018/07/17 10:00 | Grinvalds, Roberts v Dijkhuizen, Marc | 2-6,1-6 |