| Challenger Floridablanca | 08/09 17:45 | 26 | [308] Daniel E Galan v Facundo Arguello [445] | 2-6,1-6 | |
| Challenger Floridablanca | 08/08 17:40 | 25 | [445] Facundo Arguello v Nicolas Jarry [138] | 6-4,6-4 | |
| ITF Colombia F3 | 08/05 16:30 | 29 | [487] Mauricio Echazu v Facundo Arguello [500] | 3-6,2-6 | |
| ITF Colombia F3 | 08/04 19:00 | 28 | [386] Cristian Rodriguez v Facundo Arguello [500] | 6-7,4-6 | |
| ITF Colombia F3 | 08/03 18:40 | 27 | Facundo Arguello v Jorge Panta | 7-6,6-3 | |
| ITF Colombia F3 | 08/02 15:00 | 26 | Facundo Arguello v Gabriel Alejandro Hidalgo | 7-5,6-2 | |
| ITF Colombia F3 | 08/01 18:30 | 25 | Facundo Arguello v Jose Olivares | 7-6,6-1 | |
| ITF Colombia F2 | 07/29 15:00 | 29 | [347] Daniel Elahi Galan v Facundo Arguello [323] | 4-6,7-5,2-6 | |
| ITF Colombia F2 | 07/28 16:35 | 28 | Facundo Arguello v Facundo Mena | 6-2,6-0 | |
| ITF Colombia F2 | 07/27 15:00 | 27 | [386] Cristian Rodriguez v Facundo Arguello [323] | 6-7,3-6 | |
| ITF Colombia F2 | 07/26 14:30 | 26 | Felipe Mantilla v Facundo Arguello | 2-6,6-7 | |
| ITF Colombia F2 | 07/25 16:10 | 25 | Franco Emanuel Egea v Facundo Arguello | 6-7,2-6 | |
| ITF Colombia F1 | 07/21 17:25 | 28 | Facundo Arguello v Christopher Diaz-Figueroa | 3-6,3-6 | |
| ITF Colombia F1 | 07/20 19:00 | 27 | Facundo Mena v Facundo Arguello | 6-7,2-6 | |
| ITF Colombia F1 | 07/19 15:00 | 26 | Luis Patino v Facundo Arguello | 0-6,5-7 | |
| ITF Colombia F1 | 07/18 15:00 | 25 | Michael Quintero v Facundo Arguello | 6-3,3-6,0-6 | |
| Challenger Medellin | 07/12 16:00 | 25 | [383] Daniel Elahi Galan v Facundo Arguello [267] | 6-4,7-6 | |
| ITF Argentina F3 | 06/24 15:00 | 29 | [349] Juan Ignacio Galarza v Facundo Arguello [290] | 2-6,0-6 | |
| ITF Argentina F3 | 06/23 15:55 | 28 | Santiago F R Taverna v Facundo Arguello | 2-6,2-6 | |
| ITF Argentina F3 | 06/22 15:50 | 27 | Facundo Arguello v Genaro A Olivieri | 6-2,6-4 | |
| ITF Argentina F3 | 06/21 17:10 | 26 | Facundo Arguello v Geronimo E Busleiman | 6-0,6-1 | |
| ITF Argentina F3 | 06/20 16:50 | 25 | Martin Cuevas v Facundo Arguello | 1-6,1-6 | |
| ITF Argentina F2 | 06/13 20:30 | 25 | Geronimo E Busleiman v Facundo Arguello | 6-3,1-6,6-4 | |
| ITF Argentina F1 | 06/06 17:25 | 25 | Camilo Ugo Carabelli v Facundo Arguello | 6-4,6-3 | |
| Challenger Savannah - Qual. | 04/29 17:05 | 46 | [399] Jose Statham v Facundo Arguello [190] | Retired | |
| Challenger Tallahassee Qual. | 04/23 14:00 | 46 | [185] Facundo Arguello v Dominik Koepfer [399] | 7-5,4-6,5-7 | |
| Challenger Tallahassee Qual. | 04/22 16:50 | 45 | Facundo Arguello v Charles Force | 6-1,6-1 | |
| Challenger Sarasota | 04/20 23:00 | 26 | [155] Jurgen Melzer v Facundo Arguello [185] | 6-3,6-1 | |
| Challenger Sarasota | 04/18 17:05 | 25 | [185] Facundo Arguello v Christian Harrison [381] | 4-6,6-1,7-6 | |
| Challenger Sarasota Qual. | 04/17 14:00 | 54 | [418] Marcos Giron v Facundo Arguello [185] | 7-5,5-7,4-6 |