Stadion: C Round: 25 Ground: Clay
| Challenger - Lissabon | 2018/05/15 13:10 | Taro Daniel v Joao Monteiro | 7-6,7-6 |
| Challenger Braga | 2018/05/07 12:20 | Joao Monteiro v Gleb Sakharov | 6-2,3-6,2-6 |
| ATP - Estoril - Qualifikation | 2018/04/30 13:45 | Ricardo Ojeda Lara v Joao Monteiro | 6-3,2-6,6-3 |
| ATP - Estoril - Qualifikation | 2018/04/29 12:35 | Joao Monteiro v Stephane Robert | 6-3,6-7,7-6 |
| ITF - Portugal F8 | 2018/04/20 12:40 | Joao Monteiro v Tiago Cacao | 4-6,5-7 |
| ITF - Portugal F8 | 2018/04/19 13:05 | Joao Monteiro v Niels Desein | 6-2,6-7,6-4 |
| ITF - Portugal F8 | 2018/04/17 12:20 | Joao Monteiro v Bernardo Saraiva | 6-2,6-2 |
| ITF - Portugal F7 | 2018/04/12 11:00 | Igor Sijsling v Joao Monteiro | 6-2,6-1 |
| Challenger - Samarkand | 2018/05/19 07:00 | Luca Vanni v Mario Vilella Martinez | 6-4,6-4 |
| Challenger - Samarkand | 2018/05/18 08:45 | Nikola Milojevic v Mario Vilella Martinez | 2-6,4-6 |
| Challenger - Samarkand | 2018/05/17 12:00 | Mario Vilella Martinez v Attila Balazs | 5-7,6-4,6-4 |
| Challenger - Samarkand | 2018/05/17 06:35 | Mario Vilella Martinez v JC Aragone | 6-4,5-7,6-0 |
| Challenger - Samarkand | 2018/05/15 07:25 | Egor Gerasimov v Mario Vilella Martinez | 7-5,6-7,4-6 |
| Challenger - Karshi | 2018/05/09 05:30 | Mario Vilella Martinez v Khumoyun Sultanov | 1-6,5-7 |
| Challenger - Glasgow | 2018/05/01 10:30 | Mario Vilella Martinez v Roberto Ortega-Olmedo | 6-7,4-6 |
| ITF - Spanien F10 | 2018/04/28 09:45 | Pedro Cachin v Mario Vilella Martinez | 2-6,6-4,6-2 |