Stadium: Court 1 Round: 27 Ground: Clay
| ITF Portugal F13 | 2018/08/02 10:00 | Tiago Cacao v Guilherme W Osorio | 2-6,6-4,4-6 |
| ITF Portugal F13 | 2018/07/31 10:00 | Goncalo Falcao v Guilherme W Osorio | 1-6,2-6 |
| ITF Portugal F11 | 2018/07/04 14:15 | Pablo Vivero Gonzalez v Guilherme W Osorio | 5-7,6-2,6-4 |
| ITF Portugal F11 Qual | 2018/07/03 08:30 | Elio Jose Ribeiro Lago v Guilherme W Osorio | 4-6,2-6 |
| ITF Portugal F11 Qual | 2018/07/02 11:00 | Maximiliano R-Mayorga v Guilherme W Osorio | 2-6,1-6 |
| ITF Portugal F10 | 2018/06/25 09:30 | Alexander Donski v Guilherme W Osorio | 2-6,7-5,6-4 |
| ITF Portugal F10 | 2018/06/24 12:00 | Manuel Luis Lamelas v Guilherme W Osorio | 1-6,0-6 |
| ITF Portugal F10 | 2018/06/23 15:00 | Renato Van Veggel v Guilherme W Osorio | 1-6,1-6 |
| ITF Portugal F13 | 2018/08/02 17:10 | Victor Poncelet v Michel Vernier | 2-6,1-6 |
| ITF Portugal F13 | 2018/08/01 10:00 | Luis Faria v Michel Vernier | 3-6,6-7 |
| ITF Portugal F13 | 2018/07/30 09:00 | Michel Vernier v Terence Das | 7-6,6-2 |
| ITF Portugal F13 | 2018/07/29 08:30 | Michel Vernier v Afonso Salgado | 6-3,6-3 |
| ITF Italy F20 | 2018/07/24 09:45 | Michel Vernier v Lorenzo Frigerio | 4-6,6-4,3-6 |
| ITF Italy F20 Qual | 2018/07/23 08:00 | Michel Vernier v Lorenzo Brunetti | 6-3,2-6,6-2 |
| ITF Italy F20 Qual | 2018/07/22 13:00 | Michel Vernier v Francesco Maestrelli | 6-0,6-1 |
| ITF Italy F20 Qual | 2018/07/21 07:30 | Michel Vernier v Valerio Perruzza | 6-3,6-1 |