| ITF Portugal F18 | 2018/09/23 13:00 | Illia Stoliar v Igor Sao Thiago | 6-4,3-6,3-6 |
| ITF Portugal F18 | 2018/09/22 13:00 | Eduardo Morais v Illia Stoliar | 6-4,6-7,4-6 |
| ITF Portugal F17 | 2018/09/15 09:30 | Danail Banov v Illia Stoliar | 3-6,6-2,6-3 |
| ITF Portugal F16 | 2018/08/18 08:30 | Nicolas Alvarez Varona v Illia Stoliar | 6-1,6-1 |
| ITF Portugal F14 | 2018/08/05 07:00 | Illia Stoliar v Eduardo Morais | 5-7,3-6 |
| ITF Portugal F14 | 2018/08/04 10:00 | Illia Stoliar v Bernardo A P E Oliveira | 4-6,6-4,7-5 |
| ITF Portugal F13 | 2018/07/28 08:30 | Illia Stoliar v Egill Sigurdsson | 2-6,0-6 |
| ITF Portugal F11 Qual | 2018/06/30 08:30 | Illia Stoliar v Henrique Brancal | 6-4,3-6,6-7 |
| 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 F11 Qual | 2018/07/02 11:00 | Alejandro S Nieto v Stefan Petrovic | 3-6,6-7 |
| ITF Portugal F11 Qual | 2018/07/01 16:00 | Tomas Pinho v Alejandro S Nieto | 2-6,1-6 |
| ITF Portugal F8 Qual | 2018/04/14 09:30 | Bernardo S Vieira v Alejandro S Nieto | 6-4,6-3 |
| ITF Portugal F3 | 2018/03/06 16:30 | Dusty H. Boyer v Alejandro S Nieto | 6-2,6-3 |