Stadium: Stadium Round: 25 Ground: Hardcourt outdoor
| Challenger Puerto Vallarta Qual | 2018/04/29 17:25 | Olivares, Jose v Emilio Gomez | 6-7,5-7 |
| Challenger Puerto Vallarta Qual | 2018/04/28 19:25 | Olivares, Jose v Roelofse, Ruan | 6-3,7-5 |
| Challenger Guadalajara Qual | 2018/04/15 16:00 | Griekspoor, Scott v Olivares, Jose | 6-3,7-5 |
| Challenger Guadalajara Qual | 2018/04/14 15:00 | Olivares, Jose v Rivera Caballero, Mauricio | 6-3,6-3 |
| Coupe Davis | 2018/04/07 15:20 | Olivares, Jose v Kaipo Marshall | 6-0,6-1 |
| ITF USA F8 Qual | 2018/03/17 17:00 | Olivares, Jose v Bradley, Julian | 6-4,3-6,3-6 |
| ITF USA F7 Qual | 2018/03/12 17:00 | Olivares, Jose v Tristan Boyer | 3-6,4-6 |
| ITF USA F7 Qual | 2018/03/11 18:00 | Olivares, Jose v Shamma, Nicholas | 3-6,6-3,6-4 |
| ITF USA F12 | 2018/04/26 16:00 | Tomas Barrios Vera v Harrison Adams | 6-4,6-4 |
| ITF USA F12 | 2018/04/24 16:45 | Harrison Adams v Hovhannisyan, Mousheg | 6-1,6-4 |
| ITF USA F10 | 2018/04/14 16:30 | Scholtz, Nicolaas v Harrison Adams | 5-7,6-2,6-4 |
| ITF USA F10 | 2018/04/13 16:20 | Harrison Adams v Collin Altamirano | 4-6,6-3,6-4 |
| ITF USA F10 | 2018/04/11 17:00 | Harrison Adams v Dougaz, Aziz | 7-5,6-2 |
| ITF USA F9 | 2018/04/04 16:20 | Harrison Adams v Riffice, Sam | 5-7,2-6 |
| ITF USA F9 Qual | 2018/04/02 14:00 | Harrison Adams v Pulliam, Jack | 2-6,6-2,6-1 |
| ITF USA F9 Qual | 2018/04/01 15:30 | Harrison Adams v Belov, Sergey | 7-5,2-6,6-4 |