Stadium: Court 2 Round: 62 Ground: Clay
| Challenger Seville | 2018/09/01 16:00 | Ivan Marrero Curbelo v Axel Michon | 4-6,6-4,0-6 |
| ITF Spain F25 | 2018/08/25 10:00 | Ivan Marrero Curbelo v Pol Fernandez | 6-3,4-6,1-6 |
| ITF Spain F24 | 2018/08/19 13:00 | John Echeverria v Ivan Marrero Curbelo | 7-6,7-5 |
| ITF Spain F23 | 2018/08/14 14:30 | Ivan Marrero Curbelo v Sergio Martos Gornes | 6-7,3-6 |
| ITF Spain F22 | 2018/08/09 21:40 | Oriol Roca Batalla v Ivan Marrero Curbelo | 6-4,6-1 |
| ITF Spain F22 | 2018/08/07 17:15 | Ivan Marrero Curbelo v Blas Ruiz Romero | 6-0,6-2 |
| ITF Spain F18 Qual | 2018/07/07 16:30 | Pol Fernandez 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 Spain F27 | 2018/09/08 10:30 | Gabriel P Tumasonis v Angel G Melgar | 6-1,6-3 |
| ITF Spain F26 | 2018/09/01 08:00 | Luis Diego Chavez Villalpando v Gabriel P Tumasonis | 6-3,7-6 |
| ITF Portugal F16 | 2018/08/19 08:30 | Gabriel P Tumasonis v Goncalo Falcao | 5-7,3-6 |
| ITF Portugal F16 | 2018/08/18 08:30 | Dario Montes v Gabriel P Tumasonis | 4-6,5-7 |
| ITF Portugal F15 | 2018/08/11 08:30 | Gabriel P Tumasonis v Miguel Semedo | 5-7,1-6 |
| ITF Argentina F3 | 2018/05/26 12:00 | Gabriel P Tumasonis v Bruno Caula | 1-6,3-6 |
| ITF Argentina F2 | 2018/05/21 13:00 | Gabriel P Tumasonis v Juan M G Paiva | 1-6,6-7 |
| ITF Argentina F2 | 2018/05/20 13:00 | Alan Kohen v Gabriel P Tumasonis | 4-6,6-7 |