Stadium: Court 3 Round: 26 Ground: Clay
| ITF M15 Cordoba | 2021/11/23 16:00 | Hidalgo, Gabriel Alejandro v Luciano Emanuel Ambrogi | 6-4,6-4 |
| ITF M15 Oldenzaal | 2021/08/18 15:00 | Petros Tsitsipas v Hidalgo, Gabriel Alejandro | 7-5,6-2 |
| ITF M15 Oldenzaal | 2021/08/17 08:15 | Hidalgo, Gabriel Alejandro v Derdoy, Felipe | 6-2,6-1 |
| ITF M15 Oldenzaal | 2021/08/15 12:00 | Hidalgo, Gabriel Alejandro v Roland Stuurman | 6-2,2-6,10-4 |
| ITF M25 Wetzlar | 2021/08/04 09:55 | Kelly, Dayne v Hidalgo, Gabriel Alejandro | 6-7,6-2,6-4 |
| ITF M25 Wetzlar | 2021/08/03 08:55 | Hidalgo, Gabriel Alejandro v Recek, Dominik | 6-2,6-3 |
| ITF M25 Wetzlar | 2021/08/02 09:30 | Hidalgo, Gabriel Alejandro v Penzlin, Julien | 6-1,7-5 |
| ITF M15 Esch/Alzette | 2021/07/23 09:00 | Hidalgo, Gabriel Alejandro v Nicholas David Ionel | 4-6,0-6 |
| ITF M15 Cordoba | 2021/11/24 14:30 | Vilaro, Alejo v Mariano Navone | 3-6,2-6 |
| Montevideo, Uruguay | 2021/11/07 16:45 | Roberto Cid Subervi v Mariano Navone | 4-6,6-3,7-6 |
| Challenger - Buenos Aires | 2021/10/21 17:45 | Cuevas, Martin v Mariano Navone | 7-6,7-5 |
| Challenger - Buenos Aires | 2021/10/18 18:00 | Mariano Navone v Thiago Seyboth Wild | 3-6,6-1,6-2 |
| ITF M15 Platja D'Aro | 2021/10/07 09:00 | Mariano Navone v Ivan Gakhov | 6-7,3-6 |
| ITF M15 Platja D'Aro | 2021/10/05 14:55 | Recci, Mason v Mariano Navone | 2-6,3-6 |
| ITF M25 Skopje | 2021/09/28 11:15 | Mariano Navone v Cozbinov, Alexander | 6-3,5-7,1-6 |
| ITF M15 Ulcinj | 2021/09/25 08:00 | Samuel Vincent Ruggeri v Mariano Navone | 6-3,6-3 |