| Challenger Montevideo | 11/06 19:20 | 25 | [239] Facundo Arguello v Arthur De Greef [232] | 5-7,6-3,6-3 | |
| Challenger Guayaquil | 11/01 20:30 | 27 | [245] Facundo Arguello v Pedro Sousa [124] | 6-7,3-6 | |
| Challenger Guayaquil | 10/31 16:00 | 26 | [324] Ulises Blanch v Facundo Arguello [245] | 4-6,1-6 | |
| Challenger Guayaquil | 10/30 15:30 | 25 | [245] Facundo Arguello v Guilherme Clezar [240] | 4-6,6-2,6-1 | |
| Challenger Lima | 10/26 21:00 | 28 | [138] Pedro Sousa v Facundo Arguello [269] | 7-6,6-3 | |
| Challenger Lima | 10/25 17:00 | 27 | [253] Jose Hernandez-Fernandez v Facundo Arguello [269] | 1-6,2-6 | |
| Challenger Lima | 10/24 19:20 | 26 | [269] Facundo Arguello v Paolo Lorenzi [114] | 6-4,7-6 | |
| Challenger Lima | 10/23 17:20 | 25 | [331] Juan P Varillas v Facundo Arguello [269] | 4-6,1-6 | |
| Challenger Santo Domingo | 10/07 14:00 | 46 | [268] Facundo Arguello v Alejandro Gomez [485] | 3-6,6-1,3-6 | |
| Challenger Campinas | 10/02 13:00 | 25 | [349] Alejandro Gonzalez v Facundo Arguello [268] | 6-3,7-6 | |
| Challenger Biella | 09/21 09:00 | 27 | [280] Facundo Arguello v Federico Delbonis [101] | 2-6,4-6 | |
| Challenger Biella | 09/20 09:30 | 26 | [280] Facundo Arguello v Filippo Baldi [247] | 6-4,6-2 | |
| Challenger Biella | 09/18 08:00 | 25 | [157] Gastao Elias v Facundo Arguello [280] | 5-7,0-6 | |
| Challenger Szczecin | 09/15 11:00 | 28 | [108] Guido Andreozzi v Facundo Arguello [314] | 3-6,7-6,6-4 | |
| Challenger Szczecin | 09/14 12:55 | 27 | [149] Rogerio Dutra Silva v Facundo Arguello [314] | 6-4,3-6,2-6 | |
| Challenger Szczecin | 09/12 15:00 | 26 | Facundo Arguello v Roberto Carballes Baena | 7-6,6-3 | |
| Challenger Szczecin | 09/11 12:15 | 25 | Facundo Arguello v Nicolas Almagro | Retired | |
| Challenger Szczecin | 09/10 09:00 | 54 | [335] Roberto Marcora v Facundo Arguello [314] | 6-3,2-6,1-6 | |
| Challenger Szczecin | 09/09 09:00 | 46 | Jorge Montero v Facundo Arguello | 6-2,3-6,2-6 | |
| Challenger Szczecin - Qual. | 09/08 09:00 | 45 | Aliaksandr Bury v Facundo Arguello | 2-6,3-6 | |
| Challenger Siviglia | 09/06 18:15 | 27 | [291] Kimmer Coppejans v Facundo Arguello [351] | 6-3,6-7,6-1 | |
| Challenger Siviglia | 09/05 11:50 | 26 | [351] Facundo Arguello v Matteo Donati [182] | Retired | |
| Challenger Siviglia | 09/04 08:30 | 25 | [351] Facundo Arguello v Pedro Cachin [248] | 6-4,6-3 | |
| Challenger Como | 09/01 14:30 | 27 | [218] Salvatore Caruso v Facundo Arguello [351] | 6-2,7-6 | |
| Challenger Como | 08/30 10:30 | 26 | [340] Roberto Marcora v Facundo Arguello [351] | 7-6,1-6,3-6 | |
| Challenger Como | 08/28 11:00 | 25 | [351] Facundo Arguello v Hugo Dellien [105] | 6-4,6-3 | |
| Challenger Como | 08/27 09:00 | 54 | [351] Facundo Arguello v Miljan Zekic [304] | 6-4,3-6,7-6 | |
| Challenger Como | 08/26 10:30 | 46 | [274] Daniel Masur v Facundo Arguello [351] | 3-6,1-6 | |
| Challenger Como | 08/25 12:10 | 45 | Igor Sijsling v Facundo Arguello | 5-7,1-6 | |
| Challenger Padova | 07/24 10:30 | 25 | [258] Facundo Arguello v Arthur De Greef [254] | Retired |