Stadium: Court 3 Round: 25 Ground: Clay
| ITF USA F30 | 2018/11/07 15:00 | Grey Hamilton v Jose Olivares | 3-6,1-6 |
| 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 F32 | 2018/11/15 15:00 | Felipe Mantilla v Filip Cristian Jianu | 1-6,4-6 |
| Challenger Guayaquil Qual | 2018/10/27 20:50 | Felipe Mantilla v Fabricio Neis | 4-6,6-4,4-6 |
| Challenger Lima | 2018/10/20 16:45 | Bastian Malla v Felipe Mantilla | 6-2,6-4 |
| Challenger Santo Domingo | 2018/10/07 18:25 | Felipe Mantilla v Federico Coria | 5-7,6-7 |
| Challenger Santo Domingo | 2018/10/06 17:20 | Emilio Andrea Segarelli v Felipe Mantilla | 3-6,1-6 |
| Challenger Monterrey | 2018/09/29 17:35 | Felipe Mantilla v Harrison Adams | 2-6,5-7 |
| ITF Netherlands F6 | 2018/08/31 09:00 | Tom Kocevar-Desman v Felipe Mantilla | 3-6,7-6,6-4 |
| ITF Netherlands F6 | 2018/08/30 08:00 | Mick Veldheer v Felipe Mantilla | 3-6,1-6 |