Round: 62 Ground: Clay
| ITF Spain F28 Qual | 2018/09/16 12:00 | Colas Sanchez, Alberto v Montes, Dario | 7-6,6-3 |
| ITF Spain F28 Qual | 2018/09/15 12:00 | Colas Sanchez, Alberto v Rodriguez Queralto, Arnau | 6-1,6-2 |
| ITF Spain F26 | 2018/09/07 07:30 | Colas Sanchez, Alberto v Gigounon, Germain | 6-7,1-6 |
| ITF Spain F26 | 2018/09/03 08:30 | Stoute, Isaac v Colas Sanchez, Alberto | 4-6,0-6 |
| ITF Spain F26 | 2018/09/02 10:15 | Colas Sanchez, Alberto v Sedeno Nieto, Alejandro | 6-0,6-1 |
| ITF Spain F26 | 2018/09/01 10:20 | Colas Sanchez, Alberto v Aranzabal, Mikel | 6-2,7-6 |
| ITF Spain F25 | 2018/08/30 09:30 | Javier Barranco Cosano v Colas Sanchez, Alberto | 6-4,7-6 |
| ITF Spain F25 | 2018/08/27 11:10 | Colas Sanchez, Alberto v Sergi Perez Contri | 6-3,6-7,6-3 |
| ITF Spain F28 Qual | 2018/09/15 12:00 | Singh, Digvijaypratap v John Echeverria | 5-7,3-6 |
| ITF Spain F26 | 2018/09/01 13:40 | John Echeverria v Fernandez, Pol | 6-2,3-6,2-6 |
| ITF Spain F24 | 2018/08/20 11:00 | Jacobs, Tuki v John Echeverria | 6-2,7-5 |
| ITF Spain F24 | 2018/08/19 13:00 | John Echeverria v Ivan Marrero Curbelo | 7-6,7-5 |
| ITF Spain F15 | 2018/06/14 15:00 | John Echeverria v Geens, Clement | 2-6,1-6 |
| ITF Spain F15 | 2018/06/13 17:15 | John Echeverria v Diaz Argente, Luis | 6-3,6-4 |
| ITF Spain F15 Qual | 2018/06/11 09:30 | Ignacio B Alia v John Echeverria | 4-6,2-6 |
| ITF Spain F15 Qual | 2018/06/09 08:30 | John Echeverria v Hernandez, Carles | 7-5,6-1 |