Round: 25 Ground: Clay
| ITF Tunisia F21 | 2018/05/30 11:55 | Nicholas Horton v Nicolas Alberto Arreche | 4-6,6-2,6-3 |
| ITF Turkey F20 Qual | 2018/05/26 07:30 | Vullnet Tashi v Nicolas Alberto Arreche | 6-3,7-5 |
| ITF Turkey F20 | 2018/05/25 10:00 | Flemming Peters v Nicolas Alberto Arreche | 7-5,4-6,6-7 |
| ITF Turkey F20 Qual | 2018/05/24 09:15 | Luca Gelhardt v Nicolas Alberto Arreche | 3-6,3-6 |
| ITF Turkey F20 Qual | 2018/05/23 09:40 | Philipp Schroll v Nicolas Alberto Arreche | 6-3,3-6,4-6 |
| ITF Turkey F19 | 2018/05/17 07:00 | Alexis Musialek v Nicolas Alberto Arreche | 6-4,7-6 |
| ITF Turkey F19 | 2018/05/15 07:00 | Nicolas Alberto Arreche v Ivan Davydov | 5-7,6-3,6-2 |
| ITF Brazil F1 | 2018/04/24 13:00 | Nicolas Alberto Arreche v Thiago Seyboth Wild | 3-6,4-6 |