Stadium: Court 5 Round: 62 Ground: Clay
| ITF Portugal F16 | 2018/08/18 08:30 | Montes, Dario v Габриэль П. Тумасонис | 4-6,5-7 |
| ITF Portugal F15 | 2018/08/12 08:30 | Dias, Francisco v Montes, Dario | 6-2,6-2 |
| ITF Spain F21 Qual | 2018/07/29 07:00 | Sanz Llopis, Aitor v Montes, Dario | 6-4,6-0 |
| ITF Spain F20 Qual | 2018/07/22 09:30 | Барранко, Серхио v Montes, Dario | 6-4,3-6,6-4 |
| ITF Spain F20 Qual | 2018/07/21 11:00 | Montes, Dario v Alvarez, Adria | 6-3,7-5 |
| ITF Spain F19 Qual | 2018/07/14 10:00 | Игнаси Де Руеда Де Женовер v Montes, Dario | 6-2,6-1 |
| Spain F10, Singles Qualifying | 2018/04/22 14:00 | Montes, Dario v Валлнет Таши | 7-6,2-6,4-6 |
| ITF Spain F9 Qual | 2018/04/14 08:00 | Montes, Dario v Диего Идальго | 2-6,3-6 |