Stadium: Court 10 Round: 27 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 Brazil F4 | 2018/05/17 21:30 | Nicolas Santos v Gonzalo Lama | 6-4,6-7,2-6 |
| ITF Brazil F4 | 2018/05/15 13:00 | Felipe Garla v Nicolas Santos | 2-6,0-6 |
| ITF Brazil F3 | 2018/05/12 17:20 | Nicolas Santos v Oscar Jose Gutierrez | 6-4,3-6,4-6 |
| ITF Brazil F3 | 2018/05/11 22:45 | Christian Lindell v Nicolas Santos | 4-6,2-6 |
| ITF Brazil F3 | 2018/05/09 16:40 | Asdrubal Gobernate v Nicolas Santos | 4-6,2-6 |
| ITF Brazil F3 | 2018/05/07 15:30 | Nicolas Santos v Wilson Leite | 6-2,6-4 |
| ITF Brazil F2 | 2018/05/02 15:00 | Carlos E. Severino v Nicolas Santos | 7-6,6-3 |
| ITF Brazil F1 | 2018/04/26 01:30 | Nicolas Santos v Christian Lindell | 6-7,4-6 |