Stadium: Court 14 Round: 25 Ground: Clay
| ITF M15 Marbella | 2021/05/27 07:30 | Antoine Bellier v Merida Aguilar, Daniel | 6-3,6-2 |
| ITF M15 Marbella | 2021/05/26 07:30 | Merida Aguilar, Daniel v Miguel Damas | 3-6,6-1,6-2 |
| ITF M15 Valldoreix | 2021/05/10 11:00 | Lopez San Martin, Alvaro v Merida Aguilar, Daniel | 6-1,6-0 |
| ITF M15 Valldoreix | 2021/05/09 14:00 | Faria, Luis v Merida Aguilar, Daniel | 1-6,1-6 |
| ITF - M25 Reus | 2021/04/13 14:30 | Esteve Lobato, Eduard v Merida Aguilar, Daniel | 7-5,6-7,6-3 |
| ITF M25 Villena | 2021/01/31 12:00 | Alejandro Manzanera Pertusa v Merida Aguilar, Daniel | 4-6,6-4,10-4 |
| ITF - M15 Manacor | 2021/01/03 11:30 | Matias P D L Gomila v Merida Aguilar, Daniel | 2-6,7-6,10-7 |
| ITF - M15 Villena | 2020/11/15 10:00 | Sergi Perez Contri v Merida Aguilar, Daniel | 6-3,6-4 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/05/30 12:00 | Martinez Arjona, Samuel v Malesevic, Nemanja | 3-6,3-6 |
| ITF M25 Kiseljak | 2021/05/23 10:45 | Barun, Bozo v Martinez Arjona, Samuel | 6-3,6-2 |
| ITF - M15 Brcko | 2021/05/16 12:30 | Martinez Arjona, Samuel v Milanovic, Dusan | 7-6,4-6,1-10 |
| ITF - M15 Prijedor | 2021/05/09 07:00 | Martinez Arjona, Samuel v Federico Campana | 2-6,3-6 |
| ITF M15 Las Palmas | 2021/04/25 09:00 | Alosha Ushakov, Nikita v Martinez Arjona, Samuel | 7-6,2-6,12-10 |
| ITF - M25 Reus | 2021/04/11 10:00 | Alexander Weis v Martinez Arjona, Samuel | 7-6,5-7,10-4 |
| ITF M25 La Nucia | 2021/03/14 13:00 | Martinez Arjona, Samuel v Echevarri, Jesus | 6-7,6-2,7-10 |
| ITF M15 La Nucia | 2021/03/09 09:00 | Martinez Arjona, Samuel v Simon Beaupain | 1-6,2-6 |