Stadium: Court 14 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2023/10/25 08:55 | Mario G Fernandez v Guy Den Heijer | 6-1,6-3 |
| ITF M25 Tavira | 2023/10/17 14:57 | Daniel Merida Aguilar v Mario G Fernandez | 6-1,6-4 |
| Challenger Seville | 2023/09/04 15:20 | Valentin Royer v Mario G Fernandez | 6-3,7-6 |
| ITF M15 Monastir | 2023/08/16 08:30 | Mario G Fernandez v Daniele Rapagnetta | 6-3,6-1 |
| ITF M15 Monastir | 2023/08/14 14:00 | Mario G Fernandez v Vito Dell'Elba | 6-2,6-0 |
| ITF M15 Monastir | 2023/08/13 08:00 | Mario G Fernandez v Christopher Chien | 6-0,6-0 |
| ITF M15 Monastir | 2023/08/10 09:35 | Mikhail Gorokhov v Mario G Fernandez | 6-3,7-6 |
| ITF M15 Monastir | 2023/08/09 09:05 | Omar Knani v Mario G Fernandez | 0-6,1-6 |
| ITF M15 Heraklion | 2023/10/25 10:05 | Matthew William Donald v Benjamin Pietri | 6-4,7-5 |
| ITF M15 Heraklion | 2023/10/18 07:25 | Guy Den Ouden v Matthew William Donald | 6-4,6-2 |
| ITF M15 Arad | 2023/09/29 07:00 | Matthew William Donald v Jakub Nicod | 4-6,3-6 |
| ITF M15 Arad | 2023/09/28 07:50 | Matthew William Donald v Bogdan Pavel | 7-5,6-4 |
| ITF M15 Arad | 2023/09/27 07:00 | Filip Cristian Jianu v Matthew William Donald | 6-7,3-6 |
| ITF M15 Arad | 2023/09/26 08:35 | Matthew William Donald v Darius Florin Pop | 6-1,6-4 |
| ITF M25 Pardubice | 2023/09/20 11:50 | Martin Krumich v Matthew William Donald | 6-1,6-3 |
| ITF M25 Pardubice | 2023/09/19 08:00 | Matthew William Donald v Aleksander Chayka | 6-3,6-1 |