Stadium: Court 3 Round: 26 Ground: Clay
| ITF M25 Idanha-A-Nova | 2021/07/11 10:30 | Miguel Damas v Mario G Fernandez | 4-6,7-6,10-7 |
| ITF M15 Marbella | 2021/05/23 14:00 | Xavi Matas Ortega v Mario G Fernandez | 6-3,6-4 |
| ITF M15 Valldoreix | 2021/05/12 11:00 | Juan Bautista Otegui v Mario G Fernandez | 6-4,6-3 |
| ITF M15 Majadahonda | 2021/05/02 13:15 | Mario G Fernandez v Carlos Lopez Montagud | 1-6,2-6 |
| ITF M25 Reus | 2021/04/11 11:00 | Titouan Droguet v Mario G Fernandez | 6-2,6-4 |
| ITF M15 Antalya | 2021/03/02 07:00 | Stefan Palosi v Mario G Fernandez | 4-6,6-0,10-5 |
| ITF M15 Antalya | 2021/03/01 10:00 | Mario G Fernandez v Marlon Vankan | 1-6,6-2,13-11 |
| ITF M15 Antalya | 2021/02/28 08:00 | Mario G Fernandez v Adrian Mateo Bejenaru | 5-7,6-4,11-9 |
| ITF M25 Uriage | 2021/07/14 17:20 | Ignacio Monzon v Calvin Hemery | 1-6,3-6 |
| ITF M15 Poprad | 2021/07/09 08:00 | Ignacio Monzon v Tomas Jirousek | 4-6,6-4,2-6 |
| ITF M15 Poprad | 2021/07/08 10:05 | Ignacio Monzon v Julien Penzlin | 7-5,6-2 |
| ITF M15 Poprad | 2021/07/07 08:00 | Alibek Kachmazov v Ignacio Monzon | 1-6,1-6 |
| ITF M25 Wroclaw | 2021/06/28 11:00 | Ignacio Monzon v Daniel Siniakov | 3-6,6-4,7-10 |
| ITF M25 Wroclaw | 2021/06/27 15:30 | Ignacio Monzon v Piotr Pawlak | 1-6,6-4,10-5 |
| ITF M15 Bergamo | 2021/06/22 09:05 | Davide Galoppini v Ignacio Monzon | 7-5,6-2 |
| ITF M15 Bergamo | 2021/06/21 17:00 | Matteo Lugari v Ignacio Monzon | 4-6,2-6 |