Stadium: Cancha 7 Round: 29 Ground: Clay
| ITF M15 Lambare | 2019/08/22 15:35 | Ignacio Monzon v Gabriel Alejandro Hidalgo | 2-6,1-6 |
| ITF M15 Santa Cruz | 2019/08/08 20:00 | Ignacio Monzon v Gabriel Alejandro Hidalgo | 6-7,4-6 |
| ITF M15 Oldenzaal | 2021/08/18 15:00 | Petros Tsitsipas v Gabriel Alejandro Hidalgo | 7-5,6-2 |
| ITF M15 Oldenzaal | 2021/08/17 08:15 | Gabriel Alejandro Hidalgo v Felipe Derdoy | 6-2,6-1 |
| ITF M15 Oldenzaal | 2021/08/15 12:00 | Gabriel Alejandro Hidalgo v Roland Stuurman | 6-2,2-6,10-4 |
| ITF M25 Wetzlar | 2021/08/04 09:55 | Dayne Kelly v Gabriel Alejandro Hidalgo | 6-7,6-2,6-4 |
| ITF M25 Wetzlar | 2021/08/03 08:55 | Gabriel Alejandro Hidalgo v Dominik Recek | 6-2,6-3 |
| ITF M25 Wetzlar | 2021/08/02 09:30 | Gabriel Alejandro Hidalgo v Julien Penzlin | 6-1,7-5 |
| ITF M15 Esch/Alzette | 2021/07/23 09:00 | Gabriel Alejandro Hidalgo v Nicholas David Ionel | 4-6,0-6 |
| ITF M15 Esch/Alzette | 2021/07/22 10:00 | Gabriel Alejandro Hidalgo v Alexander Weis | 6-2,6-7,7-5 |
| Challenger Buenos Aires | 2021/10/19 14:00 | Ignacio Monzon v Tomas Martin Etcheverry | 0-6,3-6 |
| Challenger Buenos Aires | 2021/10/18 15:00 | Mariano Kestelboim v Ignacio Monzon | 1-6,2-6 |
| Challenger Buenos Aires | 2021/10/17 16:30 | Luciano Tacchi v Ignacio Monzon | 1-6,2-6 |
| ITF M15 Platja D'Aro | 2021/10/06 11:35 | Bruno P Navarro v Ignacio Monzon | 2-6,6-1,6-2 |
| ITF M15 Melilla | 2021/09/25 07:00 | Mario G Fernandez v Ignacio Monzon | 6-3,3-6,6-4 |
| ITF M15 Melilla | 2021/09/23 15:10 | Raffael Schaer v Ignacio Monzon | 5-7,6-3,2-6 |
| ITF M25 Madrid | 2021/09/14 09:10 | Roberto Ortega-Olmedo v Ignacio Monzon | 6-3,6-2 |
| Challenger Seville | 2021/09/05 09:00 | Ignacio Monzon v Carlos Sanchez Jover | 6-1,3-6,4-6 |