Stadium: Court 2 Round: 62
| ITF Portugal F21 | 2018/10/13 10:00 | Russell Henderson v Alejandro S Nieto | 6-2,6-1 |
| ITF Portugal F20 | 2018/10/06 14:00 | Bernardo Roque v Alejandro S Nieto | 7-5,6-4 |
| ITF Portugal F19 | 2018/10/03 14:25 | Justin Butsch v Alejandro S Nieto | 6-0,6-1 |
| ITF Portugal F19 | 2018/10/01 09:00 | Illia Stoliar v Alejandro S Nieto | 6-4,6-7,3-6 |
| ITF Portugal F19 | 2018/09/29 14:00 | Ethan Tulliani v Alejandro S Nieto | 4-6,6-3,3-6 |
| ITF Portugal F17 | 2018/09/15 09:30 | Russell Henderson v Alejandro S Nieto | 6-1,6-1 |
| ITF Spain F26 | 2018/09/02 10:15 | Alberto C Sanchez v Alejandro S Nieto | 6-0,6-1 |
| ITF Spain F26 | 2018/09/01 08:00 | Alejandro S Nieto v Alejandro M Moreno | 6-1,4-6,6-3 |
| ITF Portugal F21 | 2018/10/13 10:00 | Tilen Zitnik v Alvaro S-R Ariza | 7-5,7-6 |
| ITF Spain F21 Qual | 2018/07/29 09:30 | Yuanfeng Li v Alvaro S-R Ariza | 2-6,6-1,6-2 |
| ITF Portugal F12 Qual | 2018/07/23 13:30 | Nicolas Rosenzweig v Alvaro S-R Ariza | 6-1,6-0 |
| ITF Portugal F12 Qual | 2018/07/22 10:30 | Alvaro S-R Ariza v Nicholas Jovanovski | 7-5,6-1 |
| ITF Portugal F12 Qual | 2018/07/21 09:00 | Alvaro S-R Ariza v Joao Ferreira | 6-4,6-0 |
| ITF Spain F19 Qual | 2018/07/14 12:00 | Loic Perret v Alvaro S-R Ariza | 7-6,6-2 |
| ITF Spain F33 | 2017/10/09 08:00 | Andrey Chepelev v Alvaro S-R Ariza | 6-2,7-5 |
| ITF Spain F33 | 2017/10/08 11:30 | Alvaro S-R Ariza v Carlos V Martinez | 6-0,6-2 |