Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF Mexico F2 | 2018/05/14 16:00 | Boris Arias v Merino, Alexander | 6-4,6-4 |
| ITF Mexico F2 | 2018/05/12 16:00 | Turnquest, Jody v Merino, Alexander | 2-6,4-6 |
| ITF Mexico F1 | 2018/05/07 15:00 | Merino, Alexander v Trey Hilderbrand | 6-7,3-6 |
| ITF Mexico F1 | 2018/05/06 16:00 | Merino, Alexander v Sepulveda, Marcelo | 6-2,5-7,6-3 |
| Challenger Puerto Vallarta Qual | 2018/04/28 18:15 | Merino, Alexander v Boris Arias | 6-3,4-6,2-6 |
| ITF Tunisia F12 | 2018/03/28 08:30 | Merino, Alexander v Munoz-Abreu, Jordi | 3-6,1-6 |
| ITF Tunisia F11 | 2018/03/18 08:30 | Merino, Alexander v Catini, Daniele | 7-5,5-7,3-6 |
| ITF Tunisia F11 | 2018/03/17 08:00 | Merino, Alexander v Gonzalez Paiva, Juan Mauricio | 6-1,6-0 |
| ITF Mexico F2 | 2018/05/16 17:00 | Bourchier, Edward v Harrison Adams | 4-6,6-7 |
| ITF Mexico F2 | 2018/05/14 16:00 | Bourchier, Edward v Estrada, Yasier | 6-2,5-7,6-1 |
| ITF Mexico F2 | 2018/05/13 17:00 | Bourchier, Edward v Hernandez Moreno, Omar | 6-7,6-4,6-1 |
| ITF Mexico F1 | 2018/05/06 15:00 | Bourchier, Edward v Alejandro H Franco | 6-3,6-7,4-6 |
| ITF Mexico F1 | 2018/05/05 16:00 | Bourchier, Edward v Koch Carrillo, David | 6-3,6-2 |
| ITF USA F12 | 2018/04/21 13:00 | Bourchier, Edward v Rowland Phillips | 5-7,4-6 |
| ITF USA F12 | 2018/04/20 13:00 | Bourchier, Edward v Sorbo, Jonathan | 6-0,6-2 |
| ITF USA F10 | 2018/04/11 17:20 | Scholtz, Nicolaas v Bourchier, Edward | 6-3,6-1 |