Stadium: Court 6 Round: 62 Ground: Clay
| ITF Spain F28 Qual | 2018/09/15 14:00 | Gabriel P Tumasonis v Fernandez-Espinar, Carlos | 6-3,6-3 |
| ITF Spain F27 | 2018/09/09 08:45 | Ivan Marrero Curbelo v Gabriel P Tumasonis | 6-4,6-0 |
| ITF Spain F27 | 2018/09/08 10:30 | Gabriel P Tumasonis v Guerrero Melgar, Angel | 6-1,6-3 |
| ITF Spain F26 | 2018/09/01 08:00 | Chavez Villalpando, Luis Diego 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 | Montes, Dario v Gabriel P Tumasonis | 4-6,5-7 |
| ITF Portugal F15 | 2018/08/11 08:30 | Gabriel P Tumasonis v Semedo, Miguel | 5-7,1-6 |
| ITF Argentina F3 | 2018/05/26 12:00 | Gabriel P Tumasonis v Caula, Bruno | 1-6,3-6 |
| ITF Spain F21 | 2018/07/30 16:20 | Mikhail Korovin v Barranco, Sergio | 6-0,4-6,6-1 |
| ITF Spain F20 Qual | 2018/07/23 08:00 | Barranco, Sergio v Imanol L Morillo | 3-6,4-6 |
| ITF Spain F20 Qual | 2018/07/22 09:30 | Barranco, Sergio v Montes, Dario | 6-4,3-6,6-4 |
| ITF Spain F19 Qual | 2018/07/14 08:30 | Barranco, Sergio v Adria Soriano Barrera | 6-4,3-6,2-6 |
| ITF Tunisia F25 | 2018/06/25 08:30 | Barranco, Sergio v Recci, Mason | 5-7,3-6 |
| ITF Tunisia F25 | 2018/06/24 10:00 | Barranco, Sergio v Diego F Flores | 6-4,6-1 |
| ITF Tunisia F24 | 2018/06/17 08:00 | Barranco, Sergio v Khalil, Mohamed Zakaria | 6-3,4-6,2-6 |
| ITF Tunisia F24 | 2018/06/16 08:00 | Barranco, Sergio v Hirs, Simohamed | 6-1,6-4 |