Stadium: Court 3 Round: 27 Ground: Clay
| 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 LPD Gran Canaria | 2021/04/30 11:15 | Bega, Alessandro v Lopez San Martin, Alvaro | 2-6,4-6 |
| ITF M15 Valldoreix | 2021/05/13 09:50 | Juan Bautista Otegui v Hamou, Maxime | 6-3,7-5 |
| ITF M15 Valldoreix | 2021/05/12 11:00 | Juan Bautista Otegui v Mario G Fernandez | 6-4,6-3 |
| ITF M15 Valldoreix | 2021/05/11 09:00 | Juan Bautista Otegui v Matas Ortega, Xavi | 7-5,6-3 |
| ITF M15 Valldoreix | 2021/05/10 10:00 | Pedro Vives Marcos v Juan Bautista Otegui | 6-2,3-6,1-10 |
| ITF M15 Valldoreix | 2021/05/09 12:00 | Juan Bautista Otegui v Gabarro, Xavier | 6-2,6-4 |
| ITF M15 Majadahonda | 2021/05/03 10:45 | Toledo Bague, Pol v Juan Bautista Otegui | 6-2,7-5 |
| ITF M15 Majadahonda | 2021/05/02 13:15 | Juan Bautista Otegui v Diego F Flores | 6-3,6-4 |
| UTR Pro Tennis Series Pazardzhik | 2021/03/31 08:30 | Laurent, Thomas v Juan Bautista Otegui | 7-5,5-4 |