Round: 62 Ground: Hardcourt outdoor
| ITF Portugal F11 Qual | 2018/07/01 16:00 | Pinho, Tomas v Sedeno Nieto, Alejandro | 2-6,1-6 |
| ITF Portugal F8 Qual | 2018/04/14 09:30 | Serra Vieira, Bernardo v Sedeno Nieto, Alejandro | 6-4,6-3 |
| ITF Portugal F3 | 2018/03/06 16:30 | Boyer, Dusty H v Sedeno Nieto, Alejandro | 6-2,6-3 |
| ITF Portugal F2 Qual | 2018/02/24 10:00 | Pruner Neto, Antonio v Sedeno Nieto, Alejandro | 6-3,6-4 |
| ITF Portugal F11 Qual | 2018/07/01 16:00 | Thursfield, Harry v Petrovic, Stefan | 6-7,4-6 |
| ITF Portugal F10 | 2018/06/25 12:30 | Petrovic, Stefan v Rosenzweig, Nicolas | 3-6,2-6 |
| ITF Bosnia and Herzegovina F2 Qual | 2018/05/19 09:30 | Petrovic, Stefan v Andrea Picchione | 3-6,1-6 |
| Tunisia F17, Singles Qualifying | 2018/05/03 11:05 | Petrovic, Stefan v Tchoutakian, Maxime | 2-6,1-6 |
| Tunisia F17, Singles Qualifying | 2018/05/02 11:10 | Petrovic, Stefan v Fisher, Mikar | 6-2,6-4 |
| Tunisia F17, Singles Qualifying | 2018/04/29 09:00 | Steiner, Severin v Petrovic, Stefan | 1-6,2-6 |
| Tunisia F16, Singles Qualifying | 2018/04/22 09:00 | Schott, Hugo v Petrovic, Stefan | 6-2,6-0 |
| Tunisia F16, Singles Qualifying | 2018/04/21 09:00 | Petrovic, Stefan v Moritz, Wassily Philip Leon | 6-2,6-1 |