Round: 60 Ground: Clay
| ITF - Portugal F16 | 2017/08/14 09:00 | Guilherme W Osorio v Ryan Peniston | 3-6,1-6 |
| ITF - Portugal F16 | 2017/08/13 10:00 | Simon Carr v Guilherme W Osorio | 4-6,5-7 |
| ITF - Portugal F16 | 2017/08/12 10:00 | Manuel Montalvo Hidalgo v Guilherme W Osorio | 2-6,3-6 |
| ITF - Portugal F15 | 2017/08/09 11:05 | Guilherme W Osorio v Goncalo Falcao | 3-6,2-6 |
| ITF - Portugal F10 | 2017/07/03 08:00 | Guilherme W Osorio v Jordi Munoz-Abreu | 5-7,7-6,4-6 |
| ITF - Portugal F9 | 2017/06/25 10:00 | Guilherme W Osorio v Benard Bruno Nkomba | 4-6,6-7 |
| ITF - Portugal F9 | 2017/06/24 10:30 | Guilherme W Osorio v Pedro Gabriel Rodrigues | 6-1,6-0 |
| ITF - Portugal F8 - Qualificação | 2017/06/17 10:00 | Bogdan Djurdjevic v Guilherme W Osorio | 7-6,6-3 |
| ITF - EUA F31 | 2017/09/16 19:45 | Piers Foley v Luis Humberto Lopez | 7-6,3-6,2-6 |
| ITF - EUA F30 | 2017/09/10 16:00 | Strong Kirchheimer v Luis Humberto Lopez | 6-4,6-3 |
| ITF - México F4 | 2016/05/23 15:00 | Ricky Medinilla v Luis Humberto Lopez | 6-2,7-5 |
| ITF - México F4 | 2016/05/22 15:00 | Hugo Moura v Luis Humberto Lopez | 1-6,0-6 |