Stadium: Court 9 Round: 26 Ground: Clay
| ITF Latvia F1 | 2016/07/31 07:00 | Robertas Vrzesinski v Roberts Grinvalds | 6-0,7-6 |
| ITF Lithuania F1 | 2018/07/24 14:10 | Marc Dijkhuizen v Robertas Vrzesinski | 5-7,2-6 |
| ITF Estonia F1 | 2018/07/15 13:00 | Robertas Vrzesinski v Tadas Tarasevicius | 6-3,4-6,6-7 |
| ITF Tunisia F24 | 2018/06/21 12:50 | Ronald Slobodchikov v Robertas Vrzesinski | 6-0,6-3 |
| ITF Tunisia F24 | 2018/06/19 10:30 | Issam Haitham Taweel v Robertas Vrzesinski | 4-6,5-7 |
| ITF Tunisia F24 | 2018/06/18 08:30 | Lucas Poullain v Robertas Vrzesinski | 6-3,7-5 |
| ITF Tunisia F24 | 2018/06/17 08:00 | Quentin Coulaud v Robertas Vrzesinski | 3-6,2-6 |
| ITF Tunisia F24 | 2018/06/16 08:00 | Bastien Kolly v Robertas Vrzesinski | 1-6,3-6 |
| ITF Turkey F22 | 2018/06/06 10:10 | Pietro Licciardi v Robertas Vrzesinski | 6-2,6-2 |
| ITF Lithuania F1 | 2018/07/24 13:25 | Roberts Grinvalds v Joao Lucas Reis da Silva | 4-6,6-4,7-6 |
| ITF Lithuania F1 | 2018/07/22 08:00 | Mats Hermans v Roberts Grinvalds | 3-6,3-6 |
| ITF Lithuania F1 | 2018/07/21 13:00 | Cristiano Russo v Roberts Grinvalds | 0-6,1-6 |
| ITF Lithuania F1 | 2018/07/21 07:00 | Gustavs Lukstins v Roberts Grinvalds | 5-7,0-6 |
| ITF Estonia F1 | 2018/07/17 10:00 | Roberts Grinvalds v Marc Dijkhuizen | 2-6,1-6 |
| ITF Estonia F1 | 2018/07/16 07:00 | Daniel Soyfer v Roberts Grinvalds | 3-6,3-6 |
| ITF Estonia F1 | 2018/07/16 07:00 | Christoffer Solberg v Roberts Grinvalds | 6-7,7-6,5-7 |
| ITF Portugal F11 Qual | 2018/07/03 08:30 | Ivan Marrero Curbelo v Roberts Grinvalds | 6-3,6-4 |