Stadium: Court 2 Round: 25 Ground: Clay
| Challenger Segovia Qual | 2018/07/28 11:00 | Diego Hidalgo v Nicolas Alvarez Varona | 3-6,4-6 |
| ITF Spain F20 | 2018/07/24 08:00 | Pol Toledo Bague v Diego Hidalgo | 6-1,6-1 |
| ITF Spain F19 | 2018/07/20 14:00 | Diego Hidalgo v Raul Brancaccio | 6-1,5-7,2-6 |
| ITF Spain F19 | 2018/07/19 14:00 | Jaume Pla Malfeito v Diego Hidalgo | 6-4,2-6,4-6 |
| ITF Spain F19 | 2018/07/17 14:00 | Diego Hidalgo v Samuel M Arjona | 6-1,6-0 |
| ITF Spain F18 | 2018/07/12 14:15 | Javier Barranco Cosano v Diego Hidalgo | 6-2,6-7,6-2 |
| ITF Spain F18 | 2018/07/10 11:30 | Diego Hidalgo v Billy Harris | 5-7,7-5,6-4 |
| ITF Tunisia F25 | 2018/06/28 08:30 | Johan Nikles v Diego Hidalgo | 6-4,6-4 |
| ITF Spain F22 | 2018/08/05 20:00 | Luis Diego Chavez Villalpando v Eduardo Villar | 6-2,7-5 |
| ITF Spain F21 | 2018/08/01 15:00 | Jaume Pla Malfeito v Luis Diego Chavez Villalpando | 2-6,6-0,6-0 |
| ITF Spain F21 | 2018/07/31 07:00 | Jordi Mas De Ugarte v Luis Diego Chavez Villalpando | 6-7,6-4,1-6 |
| ITF Spain F21 Qual | 2018/07/30 07:00 | Luis Diego Chavez Villalpando v Pol Fernandez | 6-2,6-2 |
| ITF Spain F21 Qual | 2018/07/29 07:00 | Luis Diego Chavez Villalpando v Pietro Martinetti | 6-3,6-1 |
| ITF Spain F20 Qual | 2018/07/23 10:00 | Gianni Ross v Luis Diego Chavez Villalpando | 6-2,2-6,6-3 |
| ITF Spain F20 Qual | 2018/07/22 09:30 | Carlos V Martinez v Luis Diego Chavez Villalpando | 1-6,6-7 |
| ITF Spain F20 Qual | 2018/07/21 09:30 | Adria Fochs Diaz v Luis Diego Chavez Villalpando | 3-6,2-6 |