Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF USA F28B | 2018/10/21 15:00 | Grey Hamilton v Mate Zsiga | 2-6,1-6 |
| ITF USA F22 | 2018/08/08 18:55 | Alfredo Perez v Grey Hamilton | 7-5,6-4 |
| ITF USA F21 | 2018/08/03 15:00 | Grey Hamilton v Nicolas Alvarez | 4-6,0-6 |
| ITF USA F21 | 2018/08/02 17:00 | Santiago Rodriguez Taverna v Grey Hamilton | 3-6,2-6 |
| ITF USA F21 | 2018/08/01 21:15 | Guy Orly Iradukunda v Grey Hamilton | 5-7,5-7 |
| ITF USA F21 Qual | 2018/07/31 17:50 | Zane Khan v Grey Hamilton | 2-6,5-7 |
| ITF USA F21 Qual | 2018/07/30 15:00 | Joshua Ortlip v Grey Hamilton | 2-6,0-6 |
| ITF USA F18 | 2018/06/29 14:00 | Mateo Nicolas Martinez v Grey Hamilton | 6-0,6-3 |
| Challenger Santo Domingo | 2018/10/09 15:00 | Jose Olivares v Federico Coria | 2-6,0-6 |
| ITF Bolivia F3 | 2018/09/25 18:00 | Boris Arias v Jose Olivares | 7-5,7-6 |
| ITF Bolivia F2 | 2018/09/18 19:00 | Jose Olivares v Andre Miele | 4-6,6-4,2-6 |
| ITF Bolivia F1 | 2018/09/12 23:15 | Luciano Doria v Jose Olivares | 7-6,6-4 |
| ITF Bolivia F1 | 2018/09/11 19:30 | Alexandre Tsuchiya v Jose Olivares | 6-7,3-6 |
| ITF Mexico F3 | 2018/05/24 18:30 | Jose Olivares v Pavel Krainik | 6-3,1-6,5-7 |
| ITF Mexico F3 | 2018/05/23 15:00 | Mauricio Resendiz v Jose Olivares | 2-6,3-6 |
| ITF Mexico F3 | 2018/05/22 15:00 | Michael-John Every v Jose Olivares | 3-6,1-6 |