Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF Portugal F11 Qual | 2018/07/02 11:00 | Ivan Marrero Curbelo v Antonio, Joao | 6-2,2-6,7-5 |
| ITF Portugal F11 Qual | 2018/06/30 08:30 | Ivan Marrero Curbelo v Ferreira, Goncalo | 6-2,1-6,6-1 |
| ITF Spain F16 | 2018/06/25 16:00 | Kaichi Uchida v Ivan Marrero Curbelo | 6-3,7-6 |
| ITF Spain F16 Qual | 2018/06/24 18:30 | Ivan Marrero Curbelo v Ku Meza, Andre | 7-5,6-2 |
| ITF Spain F13 | 2018/05/31 08:30 | Ivan Marrero Curbelo v Zhurbin, Alexander | 4-6,4-6 |
| ITF Spain F13 | 2018/05/29 08:00 | Graziani, Edoardo v Ivan Marrero Curbelo | 4-6,4-6 |
| ITF Spain F13 | 2018/05/28 08:00 | Ivan Marrero Curbelo v Rodriguez Queralto, Arnau | 6-1,6-0 |
| ITF Spain F13 | 2018/05/27 10:30 | Ivan Marrero Curbelo v Chanon Phunsawat | 6-1,6-1 |
| ITF Portugal F11 Qual | 2018/07/02 08:30 | Cortez, Afonso v Grinvalds, Roberts | 1-6,1-6 |
| ITF Portugal F11 Qual | 2018/06/30 08:30 | Sizya Ernest Kivanda v Grinvalds, Roberts | 2-6,6-7 |
| ITF Portugal F9 | 2018/06/18 09:00 | Cacao, Tiago v Grinvalds, Roberts | 6-1,6-3 |
| ITF Portugal F9 | 2018/06/17 11:30 | Ferreira, Goncalo v Grinvalds, Roberts | 6-3,1-6,2-6 |
| ITF Portugal F9 | 2018/06/16 09:00 | Ferreira, Joao (Por) v Grinvalds, Roberts | 1-6,6-7 |
| Coupe Davis | 2018/04/07 08:00 | Grinvalds, Roberts v Zund, Serafin | 6-0,6-0 |
| Coupe Davis | 2018/04/04 07:00 | Grinvalds, Roberts v Stergiou, Ioannis | 0-6,4-6 |
| Turkey F6, Singles Qualifying | 2018/02/10 06:00 | Collin Altamirano v Grinvalds, Roberts | 6-0,6-3 |