Stadion: Court CAETANO Round: 25
| ITF - Portugal F15 | 2018/08/16 09:00 | Joao Monteiro v Evan Hoyt | 6-7,1-6 |
| ITF - Portugal F15 | 2018/08/15 10:35 | Joao Monteiro v Goncalo Falcao | 6-4,7-6 |
| ITF - Portugal F14 | 2018/08/11 11:55 | Frederico Ferreira Silva v Joao Monteiro | 6-2,6-7,7-6 |
| ITF - Portugal F14 | 2018/08/10 12:00 | Pedro Gabriel Rodrigues v Joao Monteiro | 0-6,0-6 |
| ITF - Portugal F14 | 2018/08/09 09:00 | Julien Eon v Joao Monteiro | 3-6,2-6 |
| ITF - Portugal F14 | 2018/08/08 11:00 | Andrea Bolla v Joao Monteiro | 3-6,0-6 |
| Challenger - Segovia | 2018/08/02 16:30 | Joao Monteiro v Ugo Humbert | 1-6,3-6 |
| Challenger - Segovia | 2018/07/31 15:45 | Christopher Heyman v Joao Monteiro | 4-6,4-6 |
| ITF - Portugal F15 | 2018/08/12 11:30 | Pedro Gabriel Rodrigues v Miguel Semedo | 6-3,7-6 |
| ITF - Portugal F15 | 2018/08/11 08:30 | Gabriel P Tumasonis v Miguel Semedo | 5-7,1-6 |
| ITF - Portugal F14 | 2018/08/09 10:30 | Yannick Jankovits v Miguel Semedo | 6-1,6-1 |
| ITF - Portugal F14 | 2018/08/07 13:00 | Alexis Canter v Miguel Semedo | 5-7,0-6 |
| ITF - Portugal F14 | 2018/08/06 08:30 | Miguel Semedo v Terence Das | 7-5,1-6,1-6 |
| ITF - Portugal F13 | 2018/07/31 10:00 | Miguel Semedo v Rafael Mazon-Hernandez | 2-6,7-6,5-7 |
| ITF - Portugal F12 - Qualifikation | 2018/07/22 10:30 | Miguel Semedo v Edoardo Graziani | 2-6,0-6 |
| ITF - Portugal F12 - Qualifikation | 2018/07/21 12:00 | Miguel Semedo v Sean Collins | 6-1,1-6,6-2 |