Stadium: Court 1 Round: 27 Ground: Clay
| ITF Portugal F13 | 2018/08/02 10:00 | Cacao, Tiago v Osorio, Guilherme Wojciechowski | 2-6,6-4,4-6 |
| ITF Portugal F13 | 2018/07/31 10:00 | Goncalo Falcao v Osorio, Guilherme Wojciechowski | 1-6,2-6 |
| ITF Portugal F11 | 2018/07/04 14:15 | Vivero Gonzalez, Pablo v Osorio, Guilherme Wojciechowski | 5-7,6-2,6-4 |
| ITF Portugal F11 Qual | 2018/07/03 08:30 | Elio Jose Ribeiro Lago v Osorio, Guilherme Wojciechowski | 4-6,2-6 |
| ITF Portugal F11 Qual | 2018/07/02 11:00 | Roman Mayorga, Maximiliano v Osorio, Guilherme Wojciechowski | 2-6,1-6 |
| 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 | Luis Lamelas, Manuel v Osorio, Guilherme Wojciechowski | 1-6,0-6 |
| ITF Portugal F10 | 2018/06/23 15:00 | van Veggel, Renato v Osorio, Guilherme Wojciechowski | 1-6,1-6 |
| ITF Portugal F13 | 2018/08/02 17:10 | Poncelet, Victor v Vernier, Michel | 2-6,1-6 |
| ITF Portugal F13 | 2018/08/01 10:00 | Faria, Luis v Vernier, Michel | 3-6,6-7 |
| ITF Portugal F13 | 2018/07/30 09:00 | Vernier, Michel v Das, Terence | 7-6,6-2 |
| ITF Portugal F13 | 2018/07/29 08:30 | Vernier, Michel v Salgado, Afonso | 6-3,6-3 |
| ITF Italy F20 | 2018/07/24 09:45 | Vernier, Michel v Frigerio, Lorenzo | 4-6,6-4,3-6 |
| ITF Italy F20 Qual | 2018/07/23 08:00 | Vernier, Michel v Brunetti, Lorenzo | 6-3,2-6,6-2 |
| ITF Italy F20 Qual | 2018/07/22 13:00 | Vernier, Michel v Francesco Maestrelli | 6-0,6-1 |
| ITF Italy F20 Qual | 2018/07/21 07:30 | Vernier, Michel v Valerio Perruzza | 6-3,6-1 |