Stadium: Court 3 Round: 28 Ground: Clay
| ITF M15 Valldoreix | 2021/05/14 08:00 | Lopez San Martin, Alvaro v Juan Bautista Otegui | 6-3,1-6,6-2 |
| ITF M15 Valldoreix | 2021/05/13 08:00 | Lopez San Martin, Alvaro v Tatlot, Johan Sebastien | 6-1,6-1 |
| ITF M15 Valldoreix | 2021/05/12 09:55 | Javier Barranco Cosano v Lopez San Martin, Alvaro | 1-6,2-6 |
| ITF M15 Valldoreix | 2021/05/11 09:00 | Lopez San Martin, Alvaro v Bondarevskiy, Yan | 6-2,6-3 |
| 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 | Lopez San Martin, Alvaro v Mario Mansilla Diez | 6-3,6-0 |
| ITF M15 LPD Gran Canaria | 2021/05/02 09:30 | Lopez San Martin, Alvaro v Kyrian Jacquet | 7-6,6-7,7-5 |
| ITF M15 LPD Gran Canaria | 2021/05/01 09:00 | Lopez San Martin, Alvaro v Timofey Skatov | 6-4,6-3 |
| ITF M15 Valldoreix | 2021/05/14 11:10 | Facundo Diaz Acosta v Alex M Pujolras | 6-4,6-2 |
| ITF M15 Valldoreix | 2021/05/13 08:00 | Facundo Diaz Acosta v Johan Nikles | 6-4,6-2 |
| ITF M15 Valldoreix | 2021/05/12 08:00 | Facundo Diaz Acosta v Laurent, Thomas | 6-0,6-3 |
| ITF M15 Majadahonda | 2021/05/05 09:10 | Esteve Lobato, Eduard v Facundo Diaz Acosta | 7-5,6-3 |
| Challenger Salinas 2 | 2021/04/28 17:00 | Facundo Diaz Acosta v King, Kevin | 4-6,3-6 |
| Challenger Salinas 2 | 2021/04/27 14:30 | Facundo Diaz Acosta v Benjamin Lock | 6-1,6-2 |
| Challenger Salinas 2 | 2021/04/26 18:25 | Facundo Diaz Acosta v Perchicot, Mathieu | 6-1,6-4 |
| Challenger Salinas | 2021/04/20 16:15 | Facundo Diaz Acosta v Tomas Barrios Vera | 2-6,2-6 |