Stadium: Court 11 Round: 25 Ground: Clay
| ITF Peru F2 | 2018/10/04 15:30 | Nicolas Santos v Bastian Malla | 3-6,1-6 |
| ITF Peru F1 | 2018/09/27 15:00 | Nicolas Santos v Gonzalo Villanueva | 1-6,2-6 |
| ITF Peru F1 | 2018/09/26 17:20 | Nicolas Santos v Jorge Panta | 4-6,6-3,6-4 |
| ITF Peru F1 | 2018/09/24 15:00 | Nicolas Santos v Federico Juan Aguilar | 6-2,7-5 |
| 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 Peru F2 | 2018/10/02 16:35 | Alexander Merino v Genaro Alberto Olivieri | 2-6,1-6 |
| ITF Tunisia F32 | 2018/09/18 11:15 | Alexandros Skorilas v Alexander Merino | 6-3,7-6 |
| ITF Tunisia F30 | 2018/09/06 09:00 | Benjamin Dhoe v Alexander Merino | 1-6,6-0,6-2 |
| ITF Tunisia F30 | 2018/09/04 12:05 | Alexander Merino v Joshua Ryan | 6-2,6-0 |
| ITF Tunisia F30 | 2018/09/03 09:00 | Alexander Merino v Roman Nashatyrkin | 7-6,7-6 |
| ITF Germany F13 | 2018/08/20 09:00 | Patrick Zahraj v Alexander Merino | 7-5,6-1 |
| ITF Germany F13 | 2018/08/19 08:00 | Ramazan Nureev v Alexander Merino | 0-6,3-6 |
| ITF Netherlands F4 | 2018/08/15 08:00 | Felipe Mantilla v Alexander Merino | 6-1,6-3 |