Round: 25 Ground: Clay
| ITF Spain F18 Qual | 2018/07/07 16:30 | Fernandez, Pol v Ivan Marrero Curbelo | 2-6,5-7 |
| ITF Portugal F11 | 2018/07/06 12:05 | Ivan Marrero Curbelo v Mark Whitehouse | 0-6,2-6 |
| ITF Portugal F11 | 2018/07/05 12:15 | Diaz-Figueroa, Christopher v Ivan Marrero Curbelo | 6-4,4-6,4-6 |
| ITF Portugal F11 | 2018/07/04 08:30 | Hank, Tigre v Ivan Marrero Curbelo | 6-7,6-7 |
| ITF Portugal F11 Qual | 2018/07/03 08:30 | Ivan Marrero Curbelo v Grinvalds, Roberts | 6-3,6-4 |
| 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 |