| ITF Portugal F14 | 2018/08/05 07:00 | Alexander Donski v Salgado, Afonso | 2-6,7-6,6-0 |
| ITF Portugal F11 Qual | 2018/07/03 08:30 | Tsoronis, Socrates Leon v Alexander Donski | 6-3,6-3 |
| ITF Portugal F11 Qual | 2018/07/02 11:00 | Andre, Fernando v Alexander Donski | 2-6,3-6 |
| ITF Portugal F10 | 2018/06/28 16:05 | Alexander Donski v Gil, Fred | 4-6,2-6 |
| ITF Portugal F10 | 2018/06/27 10:30 | Leote Prata, Martim v Alexander Donski | 1-6,7-6,3-6 |
| ITF Portugal F10 | 2018/06/25 09:30 | Alexander Donski v Osorio, Guilherme Wojciechowski | 2-6,7-5,6-4 |
| ITF Portugal F10 | 2018/06/24 12:00 | Alexander Donski v Stoliar, Illia | 6-2,6-4 |
| ITF Portugal F9 | 2018/06/18 10:30 | Duarte Vale v Alexander Donski | 6-3,7-5 |
| ITF Portugal F14 | 2018/08/05 07:00 | Stoliar, Illia v Morais, Eduardo | 5-7,3-6 |
| ITF Portugal F13 | 2018/07/28 14:00 | Gamble, Luke Jacob v Morais, Eduardo | 6-2,6-0 |
| ITF Portugal F12 Qual | 2018/07/22 10:30 | Morais, Eduardo v Cembellin Prieto, Antonio | 1-6,3-6 |
| ITF Portugal F11 Qual | 2018/07/01 09:00 | Morais, Eduardo v Valdoleiros, Guilherme | 3-6,2-6 |