Stadium: Court 3 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Ceuta | 2023/12/14 12:15 | Ivan Marrero Curbelo v Mario G Fernandez | 5-7,5-7 |
| ITF M15 Ceuta | 2023/12/13 17:05 | Stijn Slump v Mario G Fernandez | 2-6,6-4,3-6 |
| ITF M15 Madrid | 2023/12/06 08:45 | Diego A B Sanchez v Mario G Fernandez | 6-3,4-6,6-1 |
| Challenger Maspalomas | 2023/11/26 10:00 | Mario G Fernandez v Jonas Forejtek | 6-2,0-6,5-7 |
| ITF M15 Alcala De Henares | 2023/11/22 11:55 | Michiel de Krom v Mario G Fernandez | 7-6,6-4 |
| ITF M25 Vale Do Lobo | 2023/11/15 13:45 | Mario G Fernandez v Francisco Rocha | 6-7,6-7 |
| ITF M25 Heraklion | 2023/11/01 09:35 | Mario G Fernandez v Francesco Forti | 6-7,6-7 |
| ITF M15 Heraklion | 2023/10/26 07:25 | Mario G Fernandez v Matthew William Donald | 5-7,3-6 |
| ITF M15 Alcala De Henares | 2023/11/20 08:30 | Daniel L Salmeron v Eneko R Perez | 6-4,6-7,10-3 |
| ITF M15 Valldoreix | 2022/05/08 14:00 | Eneko R Perez v Asier Civera Martinez | 1-6,1-6 |
| ITF M25 Portimao | 2021/10/25 12:20 | Eneko R Perez v Valentino De Pellegrin | 2-6,4-6 |