| ITF Portugal F16 | 2018/08/18 08:30 | Nicolas Alvarez Varona v Illia Stoliar | 6-1,6-1 |
| Challenger Segovia Qual | 2018/07/30 10:30 | Yannick Jankovits v Nicolas Alvarez Varona | 7-6,6-1 |
| Challenger Segovia Qual | 2018/07/29 09:00 | Nicolas Alvarez Varona v Viktor Durasovic | 6-3,7-6 |
| Challenger Segovia Qual | 2018/07/28 11:00 | Diego Hidalgo v Nicolas Alvarez Varona | 3-6,4-6 |
| ITF Spain F12 | 2018/05/24 09:00 | Nicolas Alvarez Varona v Sergio Martos Gornes | 4-6,6-7 |
| ITF Spain F12 | 2018/05/23 10:40 | Nicolas Alvarez Varona v Jordi Mas De Ugarte | 6-2,6-2 |
| ATP Madrid Qual | 2018/05/05 16:35 | Nicolas Alvarez Varona v Mirza Basic | 6-3,6-7,2-6 |
| ITF Spain F9 | 2018/04/19 09:00 | Patricio Heras v Nicolas Alvarez Varona | 6-7,6-3,6-2 |
| ITF Portugal F14 | 2018/08/06 08:30 | Alexander Donski v Eduardo Morais | 6-1,6-3 |
| ITF Portugal F14 | 2018/08/05 07:00 | Illia Stoliar v Eduardo Morais | 5-7,3-6 |
| ITF Portugal F13 | 2018/07/28 14:00 | Luke Jacob Gamble v Eduardo Morais | 6-2,6-0 |
| ITF Portugal F12 Qual | 2018/07/22 10:30 | Eduardo Morais v Antonio Cembellin Prieto | 1-6,3-6 |
| ITF Portugal F11 Qual | 2018/07/01 09:00 | Eduardo Morais v Guilherme Valdoleiros | 3-6,2-6 |