Stadium: Estadio Central Round: 46 Ground: Clay
| Challenger Campinas | 2018/10/02 13:00 | Gonzalez, Alejandro v Arguello, Facundo | 6-3,7-6 |
| Challenger Biella | 2018/09/21 09:00 | Arguello, Facundo v Delbonis, Federico | 2-6,4-6 |
| Challenger Biella | 2018/09/20 09:30 | Arguello, Facundo v Baldi, Filippo | 6-4,6-2 |
| Challenger Biella | 2018/09/18 08:00 | Gastao Elias v Arguello, Facundo | 5-7,0-6 |
| Challenger Szczecin | 2018/09/15 11:00 | Guido Andreozzi v Arguello, Facundo | 3-6,7-6,6-4 |
| Challenger Szczecin | 2018/09/14 12:55 | Dutra Silva, Rogerio v Arguello, Facundo | 6-4,3-6,2-6 |
| Challenger Szczecin | 2018/09/12 15:00 | Arguello, Facundo v Roberto Carballes Baena | 7-6,6-3 |
| Challenger Szczecin | 2018/09/10 09:00 | Marcora, Roberto v Arguello, Facundo | 6-3,2-6,1-6 |
| Santo Domingo, Dominican Republic | 2018/10/06 14:00 | Gomez, Alejandro v Rodriguez, Cristian | 7-6,6-3 |
| Monterrey, Mexico | 2018/09/29 19:00 | Rodriguez, Cristian v Gomez, Alejandro | 6-3,6-2 |
| Challenger Tiburon | 2018/09/23 17:00 | Jan Choinski v Gomez, Alejandro | 6-4,1-6,6-0 |
| Challenger Tiburon | 2018/09/22 17:00 | Gomez, Alejandro v Gould, Stevie | 6-0,6-1 |
| ITF Canada F6 | 2018/09/08 16:50 | Alafia Ayeni v Gomez, Alejandro | 6-3,5-7,6-2 |
| ITF Canada F6 | 2018/09/07 16:30 | Gomez, Alejandro v Nick Chappell | 6-3,6-4 |
| ITF Canada F6 | 2018/09/06 14:00 | Gomez, Alejandro v Ore, I. A. | 6-7,6-4,6-3 |
| ITF Canada F6 | 2018/09/04 15:40 | Gomez, Alejandro v Griffith, William | 6-2,6-2 |