Round: 62 Ground: Clay
| ITF Spain F31 Qual | 2017/09/23 09:30 | Nikolas Sanchez Izquierdo v Arnau R Queralto | 6-0,6-1 |
| ITF Spain F12 | 2018/05/19 07:00 | Nikolas Sanchez Izquierdo v Ignacio A B Otarola | 6-4,6-2 |
| ITF Spain F11 | 2018/05/17 09:00 | Nikolas Sanchez Izquierdo v Jordi Samper-Montana | 1-6,4-6 |
| ITF Spain F11 | 2018/05/15 10:30 | Nikolas Sanchez Izquierdo v Sergiu D Medesan | 6-0,6-1 |
| ITF Spain F11 | 2018/05/14 09:00 | Nikolas Sanchez Izquierdo v Samy Grace | 6-4,7-6 |
| ITF Spain F11 | 2018/05/13 12:00 | Nikolas Sanchez Izquierdo v Pol Fernandez | 6-3,0-6,6-2 |
| ITF Israel F6 | 2018/05/10 07:00 | Nikolas Sanchez Izquierdo v Matias Franco Descotte | 0-6,2-6 |
| ITF Israel F6 | 2018/05/08 13:25 | Roi Ginat v Nikolas Sanchez Izquierdo | 2-6,3-6 |
| ITF Israel F5 | 2018/05/02 07:00 | Nikolas Sanchez Izquierdo v Nicolas Uryson | 3-6,2-6 |
| ITF Spain F12 | 2018/05/19 07:00 | Arnau R Queralto v Jose Vicent Monsonis Uso | 7-6,6-4 |
| ITF Spain F11 | 2018/05/13 09:00 | Albert Roglan v Arnau R Queralto | 6-1,7-5 |
| ITF Spain F9 Qual | 2018/04/15 08:00 | Jordan Correia v Arnau R Queralto | 6-1,6-1 |
| ITF Spain F9 Qual | 2018/04/14 12:15 | Arnau R Queralto v Jose Vicent Monsonis Uso | 6-2,6-2 |
| ITF Spain F7 | 2018/03/16 09:30 | Etienne Donnet v Arnau R Queralto | 2-6,6-2,6-1 |
| ITF Spain F1 | 2018/01/14 09:00 | Arnau R Queralto v Matvey Minin | 7-5,3-6,5-7 |
| ITF Spain F31 Qual | 2017/09/23 09:30 | Nikolas Sanchez Izquierdo v Arnau R Queralto | 6-0,6-1 |
| ITF Spain F30 Qual | 2017/09/17 14:30 | Arnau R Queralto v Adil Kalyanpur | 4-6,4-6 |