Stadium: Court 3 Round: 26 Ground: Clay
| ITF M15 Melilla | 2021/09/21 16:15 | Mario G Fernandez v Luis Diego Chavez Villalpando | 6-1,7-5 |
| ITF M25 Madrid | 2021/09/16 09:45 | Filip Misolic v Mario G Fernandez | 6-0,6-3 |
| ITF M25 Madrid | 2021/09/15 11:25 | Mario G Fernandez v Jeroen Vanneste | 6-2,7-6 |
| ITF M25 Madrid | 2021/09/14 07:00 | Manish Sureshkumar v Mario G Fernandez | 6-4,6-3 |
| ITF M15 Bad Waltersdorf | 2021/08/22 07:00 | Lorenzo Vatteroni v Mario G Fernandez | 7-5,6-4 |
| ITF M15 Warmbad-Villach | 2021/08/18 14:35 | Mario G Fernandez v Lukas Krainer | 6-7,6-2,1-6 |
| ITF M15 Warmbad-Villach | 2021/08/17 11:00 | Paul Valsecchi v Mario G Fernandez | 2-6,3-6 |
| ITF M15 Warmbad-Villach | 2021/08/16 16:00 | Matic Dimic v Mario G Fernandez | 5-7,3-6 |
| 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 |
| ITF M15 Huy | 2021/08/25 09:00 | Nicolas Tepmahc v Ignacio Monzon | 6-4,6-3 |
| ITF M15 Oldenzaal | 2021/08/18 09:55 | Ignacio Monzon v Damien Wenger | 2-6,0-6 |
| ITF M15 Cairo | 2021/08/05 08:00 | Stefano Battaglino v Ignacio Monzon | 2-6,6-1,6-2 |
| ITF M15 Cairo | 2021/08/04 12:45 | Daisuke Sumizawa v Ignacio Monzon | 3-6,1-6 |
| ITF M15 Cairo | 2021/07/30 10:30 | Mathieu Perchicot v Ignacio Monzon | 7-5,6-2 |